{"product_id":"osaki-4d-aeris-duo-massage-chair","title":"Osaki 4D Aeris Duo Massage Chair","description":"\u003cdiv class=\"product-pdp product-pdp--calm\"\u003e\n\n  \u003csection class=\"section\"\u003e\n    \u003cdiv class=\"container\"\u003e\n      \u003cdiv class=\"overview__grid\"\u003e\n        \u003cdiv class=\"overview__body\"\u003e\n          \u003cp class=\"section__eyebrow\"\u003eOsaki | Model RT5951F\u003c\/p\u003e\n          \u003ch1 class=\"section__title\"\u003eOsaki 4D Aeris Duo Massage Chair\u003c\/h1\u003e\n          \u003cp\u003eThe Aeris Duo runs two massage mechanisms at the same time on a single 1431 mm SL track. The upper mechanism is 4D: a four-ball head on a nylon fiberglass curved arm, with its own walking, kneading and tapping motors, an independent radial pump, a soft-touch airbag behind a hard curved arm, and 60 mm of protrusion. It covers 840 mm of the track. The lower mechanism is 2D and works the waist and hips, with a four-ball head on a fiberglass spring curved arm and synchronous kneading and walking motors, covering 830 mm. Their ranges overlap by 360 mm.\u003c\/p\u003e\n          \u003cp\u003eAround that track sit 44 airbags on 7 valves: 12 at the feet, 8 at the legs, 16 across the arms, 4 at the hip sides and 4 at the shoulders. The waist carries two 370 × 120 mm carbon fiber heating elements with three levels, and an air cooling circuit with three levels of airflow. Twelve auto programs sit in four categories at three intensities, with six manual techniques underneath them, and everything is driven from a 7 inch touchscreen controller, armrest quick buttons or voice. The chair ships in Black, Brown and Taupe.\u003c\/p\u003e\n          \u003cdiv class=\"spec-banner\"\u003e\n            \u003cdiv class=\"spec-card\"\u003e\n              \u003cdiv class=\"spec-card__label\"\u003eMechanisms\u003c\/div\u003e\n              \u003cdiv class=\"spec-card__value\"\u003e4D + 2D\u003c\/div\u003e\n              \u003cdiv class=\"spec-card__sub\"\u003e840 mm upper, 830 mm lower\u003c\/div\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"spec-card\"\u003e\n              \u003cdiv class=\"spec-card__label\"\u003eSL Track\u003c\/div\u003e\n              \u003cdiv class=\"spec-card__value\"\u003e1431 mm\u003c\/div\u003e\n              \u003cdiv class=\"spec-card__sub\"\u003eSeven zones, 360 mm overlap\u003c\/div\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"spec-card\"\u003e\n              \u003cdiv class=\"spec-card__label\"\u003eAirbags\u003c\/div\u003e\n              \u003cdiv class=\"spec-card__value\"\u003e44\u003c\/div\u003e\n              \u003cdiv class=\"spec-card__sub\"\u003eFed by 7 valves\u003c\/div\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"spec-card\"\u003e\n              \u003cdiv class=\"spec-card__label\"\u003eWaist\u003c\/div\u003e\n              \u003cdiv class=\"spec-card__value\"\u003eHeat \u0026amp; cooling\u003c\/div\u003e\n              \u003cdiv class=\"spec-card__sub\"\u003eThree levels each\u003c\/div\u003e\n            \u003c\/div\u003e\n          \u003c\/div\u003e\n          \u003cdiv class=\"value-bar\"\u003e\n            \u003cspan class=\"value-bar__item\"\u003eTwo mechanisms running at once\u003c\/span\u003e\n            \u003cspan class=\"value-bar__item\"\u003eWaist air cooling, 3 levels\u003c\/span\u003e\n            \u003cspan class=\"value-bar__item\"\u003e12 programs, 6 manual techniques\u003c\/span\u003e\n            \u003cspan class=\"value-bar__item\"\u003e50 ms anti-pinch response\u003c\/span\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"overview__image\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0044\/9341\/0393\/files\/aeris_1500px_black_model.jpg?v=1788216492\" alt=\"Osaki 4D Aeris Duo massage chair in black\" width=\"1500\" height=\"1500\" loading=\"eager\"\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"section--dark\"\u003e\n    \u003cdiv class=\"container\"\u003e\n      \u003cp class=\"section__eyebrow\"\u003eInside the chair\u003c\/p\u003e\n      \u003ch2 class=\"section__title\"\u003eWhat the Specification Actually Says\u003c\/h2\u003e\n      \u003cp class=\"section__lead\"\u003eOsaki call the Aeris Duo a market disruptor. Here is the build underneath that: two mechanisms on one track, 44 independently fed airbags, a heated and cooled waist section, and a safety system that reacts in 50 ms.\u003c\/p\u003e\n      \u003cdiv class=\"tech__grid\"\u003e\n        \u003cdiv class=\"tech-card tech-card--accent\"\u003e\n          \u003cdiv class=\"tech-card__icon\"\u003e⚙\u003c\/div\u003e\n          \u003cdiv class=\"tech-card__title\"\u003eTwo Mechanisms, One Track\u003c\/div\u003e\n          \u003cdiv class=\"tech-card__text\"\u003eThe 4D upper mechanism and the 2D waist and hip mechanism run at the same time on one 1431 mm SL track. The upper unit covers 840 mm, the lower covers 830 mm, and the two working ranges share 360 mm of track. The 4D unit has five intensity levels; massage speed runs across six.\u003c\/div\u003e\n          \u003cspan class=\"tech-card__stat\"\u003e360 mm overlap\u003c\/span\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"tech-card\"\u003e\n          \u003cdiv class=\"tech-card__icon\"\u003e💨\u003c\/div\u003e\n          \u003cdiv class=\"tech-card__title\"\u003e44 Airbags on 7 Valves\u003c\/div\u003e\n          \u003cdiv class=\"tech-card__text\"\u003eTwelve airbags at the feet, eight at the legs, sixteen across the arms, four at the hip sides and four at the shoulders. Osaki inflate each airbag from its own dedicated air supply, and they say that a dedicated feed per airbag produces faster inflation and stronger pressure than one feed shared across a group.\u003c\/div\u003e\n          \u003cspan class=\"tech-card__stat\"\u003e12 + 8 + 16 + 4 + 4\u003c\/span\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"tech-card\"\u003e\n          \u003cdiv class=\"tech-card__icon\"\u003e🌡\u003c\/div\u003e\n          \u003cdiv class=\"tech-card__title\"\u003eWaist Heat and Waist Cooling\u003c\/div\u003e\n          \u003cdiv class=\"tech-card__text\"\u003eTwo 370 × 120 mm carbon fiber elements heat the waist across three adjustable levels. A separate air cooling circuit moves air through the same section at three levels of airflow. Osaki frame the pair seasonally: cooling in summer, heat in autumn and winter.\u003c\/div\u003e\n          \u003cspan class=\"tech-card__stat\"\u003e3 levels each\u003c\/span\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"tech-card\"\u003e\n          \u003cdiv class=\"tech-card__icon\"\u003e🛡\u003c\/div\u003e\n          \u003cdiv class=\"tech-card__title\"\u003eAnti-Pinch Detection\u003c\/div\u003e\n          \u003cdiv class=\"tech-card__text\"\u003eThree points are monitored: the control box, the calf rests, and the gap where the calf section meets the seat frame. Detection is capacitive, plus an infrared dual-beam at the legrest and seat frame. Response time is 50 ms. Overheat protection runs alongside it.\u003c\/div\u003e\n          \u003cspan class=\"tech-card__stat\"\u003e50 ms response\u003c\/span\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"section--cream\"\u003e\n    \u003cdiv class=\"container\"\u003e\n      \u003cp class=\"section__eyebrow\"\u003eThe numbers\u003c\/p\u003e\n      \u003ch2 class=\"section__title\"\u003eEight Things the Aeris Duo Is Built With\u003c\/h2\u003e\n      \u003cp class=\"section__lead\"\u003eEvery figure below is Osaki's published specification for model RT5951F.\u003c\/p\u003e\n      \u003cdiv class=\"benefits__grid\"\u003e\n        \u003cdiv class=\"benefit-card\"\u003e\n          \u003cdiv class=\"benefit-card__icon\"\u003e⚙\u003c\/div\u003e\n          \u003cdiv class=\"benefit-card__title\"\u003eTwo mechanisms, one track\u003c\/div\u003e\n          \u003cdiv class=\"benefit-card__tag\"\u003e4D upper, 2D lower\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"benefit-card\"\u003e\n          \u003cdiv class=\"benefit-card__icon benefit-card__icon--dark\"\u003e📏\u003c\/div\u003e\n          \u003cdiv class=\"benefit-card__title\"\u003e1431 mm of SL track\u003c\/div\u003e\n          \u003cdiv class=\"benefit-card__tag\"\u003eSeven segments, seven zones\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"benefit-card\"\u003e\n          \u003cdiv class=\"benefit-card__icon\"\u003e💨\u003c\/div\u003e\n          \u003cdiv class=\"benefit-card__title\"\u003e44 airbags on 7 valves\u003c\/div\u003e\n          \u003cdiv class=\"benefit-card__tag\"\u003eDedicated air supply each\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"benefit-card\"\u003e\n          \u003cdiv class=\"benefit-card__icon benefit-card__icon--dark\"\u003e🌡\u003c\/div\u003e\n          \u003cdiv class=\"benefit-card__title\"\u003eWaist heat at three levels\u003c\/div\u003e\n          \u003cdiv class=\"benefit-card__tag\"\u003eTwo 370 × 120 mm elements\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"benefit-card\"\u003e\n          \u003cdiv class=\"benefit-card__icon\"\u003e❄\u003c\/div\u003e\n          \u003cdiv class=\"benefit-card__title\"\u003eWaist cooling at three levels\u003c\/div\u003e\n          \u003cdiv class=\"benefit-card__tag\"\u003eAir cooling circuit\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"benefit-card\"\u003e\n          \u003cdiv class=\"benefit-card__icon\"\u003e📱\u003c\/div\u003e\n          \u003cdiv class=\"benefit-card__title\"\u003e12 programs in 4 categories\u003c\/div\u003e\n          \u003cdiv class=\"benefit-card__tag\"\u003eThree intensity levels\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"benefit-card\"\u003e\n          \u003cdiv class=\"benefit-card__icon benefit-card__icon--dark\"\u003e🦵\u003c\/div\u003e\n          \u003cdiv class=\"benefit-card__title\"\u003eLegrest extends 130 mm\u003c\/div\u003e\n          \u003cdiv class=\"benefit-card__tag\"\u003e16.5 to 89 degrees\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"benefit-card\"\u003e\n          \u003cdiv class=\"benefit-card__icon\"\u003e🛡\u003c\/div\u003e\n          \u003cdiv class=\"benefit-card__title\"\u003e50 ms anti-pinch response\u003c\/div\u003e\n          \u003cdiv class=\"benefit-card__tag\"\u003eCapacitive and infrared\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"section\"\u003e\n    \u003cdiv class=\"container\"\u003e\n      \u003cp class=\"section__eyebrow\"\u003eCloser look\u003c\/p\u003e\n      \u003ch2 class=\"section__title\"\u003eThree Parts of the Chair Worth Reading About\u003c\/h2\u003e\n      \u003cdiv class=\"product-dives\"\u003e\n\n        \u003cdiv class=\"product-dive\"\u003e\n          \u003cdiv class=\"product-dive__image\"\u003e\n            \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0044\/9341\/0393\/files\/aeris_1500px_footrest.jpg?v=1788216492\" alt=\"Osaki 4D Aeris Duo massage chair footrest and leg system\" width=\"1500\" height=\"1500\" loading=\"lazy\"\u003e\n          \u003c\/div\u003e\n          \u003cdiv class=\"product-dive__body-wrap\"\u003e\n            \u003cspan class=\"product-dive__badge\"\u003eLeg and foot\u003c\/span\u003e\n            \u003ch3 class=\"product-dive__title\"\u003eA 360 Degree Leg and Foot System\u003c\/h3\u003e\n            \u003cp class=\"product-dive__body\"\u003eThe lower half of the chair is a separate machine from the track. Calves get kneading, rubbing and scraping from triple-row rollers with airbags on both sides. The soles get three-disc scraping that alternates forward and reverse, with airbags on both sides of the feet. The whole assembly extends itself 130 mm forward and back to meet different leg lengths, and the angle adjusts across a range of 16.5 to 89 degrees.\u003c\/p\u003e\n            \u003cul class=\"product-dive__list\"\u003e\n              \u003cli\u003eAutomatic forward and backward extension of 130 mm\u003c\/li\u003e\n              \u003cli\u003eAdjustable legrest angle from 16.5 to 89 degrees\u003c\/li\u003e\n              \u003cli\u003eTriple-row rollers for calf kneading, rubbing and scraping\u003c\/li\u003e\n              \u003cli\u003eThree-disc sole scraping, alternating forward and reverse\u003c\/li\u003e\n              \u003cli\u003eTwelve airbags at the feet, eight at the legs\u003c\/li\u003e\n            \u003c\/ul\u003e\n            \u003cdiv class=\"feature-badges\"\u003e\n              \u003cspan class=\"feature-badge\"\u003e130 mm extension\u003c\/span\u003e\n              \u003cspan class=\"feature-badge\"\u003e16.5° to 89°\u003c\/span\u003e\n              \u003cspan class=\"feature-badge\"\u003e360 degree system\u003c\/span\u003e\n            \u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"product-dive product-dive--reverse\"\u003e\n          \u003cdiv class=\"product-dive__image\"\u003e\n            \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0044\/9341\/0393\/files\/aeris_1500px_ankle-stretching.jpg?v=1788216492\" alt=\"Osaki 4D Aeris Duo massage chair ankle stretching mechanism\" width=\"1500\" height=\"1500\" loading=\"lazy\"\u003e\n          \u003c\/div\u003e\n          \u003cdiv class=\"product-dive__body-wrap\"\u003e\n            \u003cspan class=\"product-dive__badge\"\u003eAnkles\u003c\/span\u003e\n            \u003ch3 class=\"product-dive__title\"\u003eTwo-Direction Ankle Twisting\u003c\/h3\u003e\n            \u003cp class=\"product-dive__body\"\u003eThe ankle mechanism twists in two directions, working independently of the calf rollers and the sole discs above and below it. It sits inside the same legrest that extends 130 mm and swings through 16.5 to 89 degrees, so the moving parts around the ankle are the ones Osaki guard most closely: the calf rests and the calf-to-seat-frame gap both carry anti-pinch detection, capacitive at the calf rests and infrared dual-beam at the legrest and seat frame, with a 50 ms response.\u003c\/p\u003e\n            \u003cul class=\"product-dive__list\"\u003e\n              \u003cli\u003eTwo-direction twisting massage for the ankles\u003c\/li\u003e\n              \u003cli\u003eAnti-pinch at the calf rests and the calf-to-seat frame gap\u003c\/li\u003e\n              \u003cli\u003eCapacitive detection plus infrared dual-beam\u003c\/li\u003e\n              \u003cli\u003e50 ms response time\u003c\/li\u003e\n            \u003c\/ul\u003e\n            \u003cdiv class=\"feature-badges\"\u003e\n              \u003cspan class=\"feature-badge\"\u003eTwo directions\u003c\/span\u003e\n              \u003cspan class=\"feature-badge\"\u003e50 ms anti-pinch\u003c\/span\u003e\n            \u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"product-dive\"\u003e\n          \u003cdiv class=\"product-dive__image\"\u003e\n            \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0044\/9341\/0393\/files\/aeris_1500px_ZG.jpg?v=1788216492\" alt=\"Osaki 4D Aeris Duo massage chair reclined in the zero gravity position\" width=\"1500\" height=\"1500\" loading=\"lazy\"\u003e\n          \u003c\/div\u003e\n          \u003cdiv class=\"product-dive__body-wrap\"\u003e\n            \u003cspan class=\"product-dive__badge\"\u003ePosition\u003c\/span\u003e\n            \u003ch3 class=\"product-dive__title\"\u003eTwo Zero Gravity Settings, 131 to 156 Degrees\u003c\/h3\u003e\n            \u003cp class=\"product-dive__body\"\u003eThe backrest holds two stored zero gravity positions between 131 and 156 degrees, so the shallower and the deeper recline are both one button away. One Touch Rocking moves the whole frame. Before a program starts, the chair scans the body to place the shoulder position, and that position can then be nudged by hand from the controller. Reclined, the chair occupies 2050 mm front to back and stands 830 mm tall, which is roughly 80.7 in by 32.7 in.\u003c\/p\u003e\n            \u003cul class=\"product-dive__list\"\u003e\n              \u003cli\u003eTwo zero gravity settings, backrest 131 to 156 degrees\u003c\/li\u003e\n              \u003cli\u003eOne Touch Rocking\u003c\/li\u003e\n              \u003cli\u003eAuto body scanning with manual shoulder fine-tuning\u003c\/li\u003e\n              \u003cli\u003eUpright footprint 1650 (D) × 770 (W) × 1150 (H) mm\u003c\/li\u003e\n              \u003cli\u003eReclined footprint 2050 (D) × 770 (W) × 830 (H) mm\u003c\/li\u003e\n            \u003c\/ul\u003e\n            \u003cdiv class=\"feature-badges\"\u003e\n              \u003cspan class=\"feature-badge\"\u003e131° to 156°\u003c\/span\u003e\n              \u003cspan class=\"feature-badge\"\u003eOne Touch Rocking\u003c\/span\u003e\n              \u003cspan class=\"feature-badge\"\u003eAuto body scan\u003c\/span\u003e\n            \u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"section--cream\"\u003e\n    \u003cdiv class=\"container\"\u003e\n      \u003cp class=\"section__eyebrow\"\u003eCompare\u003c\/p\u003e\n      \u003ch2 class=\"section__title\"\u003eThree Osaki 4D Chairs\u003c\/h2\u003e\n      \u003cp class=\"section__lead\"\u003eAll three run a 4D mechanism on an SL track with heat and zero gravity. What separates the Aeris Duo is the second mechanism working the waist and hips at the same time as the first, and an air cooling circuit at the waist.\u003c\/p\u003e\n      \u003cdiv class=\"compare__grid compare__grid--three\"\u003e\n\n        \u003cdiv class=\"compare-card compare-card--current\"\u003e\n          \u003cdiv class=\"compare-card__flag\"\u003eYou're Here\u003c\/div\u003e\n          \u003cdiv class=\"compare-card__image\"\u003e\n            \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0044\/9341\/0393\/files\/aeris_1500px_black.jpg?v=1788216492\" alt=\"Osaki 4D Aeris Duo massage chair in black\" width=\"1500\" height=\"1500\" loading=\"lazy\"\u003e\n          \u003c\/div\u003e\n          \u003cdiv class=\"compare-card__name\"\u003eOsaki 4D Aeris Duo\u003c\/div\u003e\n          \u003cdiv class=\"compare-card__desc\"\u003eTwo mechanisms running at once on one track, with waist heat and waist cooling.\u003c\/div\u003e\n          \u003cdiv class=\"compare-card__feats\"\u003e\n            \u003cspan class=\"compare-card__feat\"\u003e4D upper, 2D lower\u003c\/span\u003e\n            \u003cspan class=\"compare-card__feat\"\u003e1431 mm SL track\u003c\/span\u003e\n            \u003cspan class=\"compare-card__feat\"\u003e44 airbags, 7 valves\u003c\/span\u003e\n            \u003cspan class=\"compare-card__feat\"\u003eWaist cooling, 3 levels\u003c\/span\u003e\n          \u003c\/div\u003e\n          \u003cspan class=\"compare-card__cta compare-card__cta--current\"\u003eCurrently viewing\u003c\/span\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"compare-card\"\u003e\n          \u003cdiv class=\"compare-card__image\"\u003e\n            \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0044\/9341\/0393\/files\/Osaki_Yoga_4D_1.jpg?v=1782494544\" alt=\"Osaki 4D Yoga Flex massage chair\" width=\"800\" height=\"800\" loading=\"lazy\"\u003e\n          \u003c\/div\u003e\n          \u003cdiv class=\"compare-card__name\"\u003eOsaki 4D Yoga Flex\u003c\/div\u003e\n          \u003cdiv class=\"compare-card__desc\"\u003eA single 4D mechanism on an SL track, with heat and zero gravity.\u003c\/div\u003e\n          \u003cdiv class=\"compare-card__feats\"\u003e\n            \u003cspan class=\"compare-card__feat\"\u003e4D mechanism\u003c\/span\u003e\n            \u003cspan class=\"compare-card__feat\"\u003eSL track\u003c\/span\u003e\n            \u003cspan class=\"compare-card__feat\"\u003eHeat\u003c\/span\u003e\n            \u003cspan class=\"compare-card__feat\"\u003eZero gravity\u003c\/span\u003e\n          \u003c\/div\u003e\n          \u003ca class=\"compare-card__cta\" href=\"\/products\/osaki-4d-yoga-flex-massage-chair\"\u003eShop the Osaki 4D Yoga Flex\u003c\/a\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"compare-card\"\u003e\n          \u003cdiv class=\"compare-card__image\"\u003e\n            \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0044\/9341\/0393\/products\/11.Maestro_LE_2.0_Black_1390x139_5d9416d2-ce90-4621-aff9-a700c3258f59.jpg?v=1683925903\" alt=\"Osaki 4D Pro Maestro LE 2.0 massage chair\" width=\"800\" height=\"800\" loading=\"lazy\"\u003e\n          \u003c\/div\u003e\n          \u003cdiv class=\"compare-card__name\"\u003eOsaki 4D Pro Maestro LE 2.0\u003c\/div\u003e\n          \u003cdiv class=\"compare-card__desc\"\u003eOsaki's Pro Maestro line, also 4D on an SL track with heat and zero gravity.\u003c\/div\u003e\n          \u003cdiv class=\"compare-card__feats\"\u003e\n            \u003cspan class=\"compare-card__feat\"\u003e4D mechanism\u003c\/span\u003e\n            \u003cspan class=\"compare-card__feat\"\u003eSL track\u003c\/span\u003e\n            \u003cspan class=\"compare-card__feat\"\u003eHeat\u003c\/span\u003e\n            \u003cspan class=\"compare-card__feat\"\u003eZero gravity\u003c\/span\u003e\n          \u003c\/div\u003e\n          \u003ca class=\"compare-card__cta\" href=\"\/products\/osaki-4d-maestro-le-2-0-massage-chair\"\u003eShop the Osaki 4D Pro Maestro LE 2.0\u003c\/a\u003e\n        \u003c\/div\u003e\n\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003csection class=\"section\"\u003e\n    \u003cdiv class=\"container\"\u003e\n      \u003cp class=\"section__eyebrow\"\u003eQuestions\u003c\/p\u003e\n      \u003ch2 class=\"section__title\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n      \u003cdiv class=\"faq__list\"\u003e\n\n        \u003cdiv class=\"faq-item\"\u003e\n          \u003cbutton type=\"button\"\u003e\n            \u003cspan\u003eIs the whole chair 4D?\u003c\/span\u003e\n            \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n          \u003c\/button\u003e\n          \u003cdiv class=\"faq-answer\"\u003e\n            \u003cdiv class=\"faq-answer__inner\"\u003eNo. The \u003cstrong\u003eupper mechanism is 4D\u003c\/strong\u003e and the \u003cstrong\u003elower mechanism is 2D\u003c\/strong\u003e. Osaki's sell sheet groups them under the name \"4D Dual Mechanism\", so it is worth being exact: the 4D unit is a four-ball head on a nylon fiberglass curved arm with separate walking, kneading and tapping motors, an independent radial pump and 60 mm of protrusion, running across five intensity levels. The 2D unit is a four-ball head on a fiberglass spring curved arm with synchronous kneading and walking motors, built for the waist and hips. The genuinely unusual part is that both mechanisms run at the same time on one track.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"faq-item\"\u003e\n          \u003cbutton type=\"button\"\u003e\n            \u003cspan\u003eWhat happens where the two mechanisms overlap?\u003c\/span\u003e\n            \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n          \u003c\/button\u003e\n          \u003cdiv class=\"faq-answer\"\u003e\n            \u003cdiv class=\"faq-answer__inner\"\u003eThe upper mechanism covers \u003cstrong\u003e840 mm\u003c\/strong\u003e of the 1431 mm track and the lower covers \u003cstrong\u003e830 mm\u003c\/strong\u003e. Added together that is 1670 mm across a 1431 mm track, so the two working ranges share \u003cstrong\u003e360 mm\u003c\/strong\u003e. That shared band sits over the waist and lower back, where the 4D head and the 2D waist-and-hip head can both reach.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"faq-item\"\u003e\n          \u003cbutton type=\"button\"\u003e\n            \u003cspan\u003eHow many airbags are there, and where?\u003c\/span\u003e\n            \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n          \u003c\/button\u003e\n          \u003cdiv class=\"faq-answer\"\u003e\n            \u003cdiv class=\"faq-answer__inner\"\u003e\n\u003cstrong\u003e44 airbags on 7 valves\u003c\/strong\u003e: 12 at the feet, 8 at the legs, 16 across the arms, 4 at the hip sides and 4 at the shoulders. Osaki state that each airbag is inflated independently from a dedicated air supply, and that this gives faster inflation and stronger pressure than a system that inflates several airbags from one feed.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"faq-item\"\u003e\n          \u003cbutton type=\"button\"\u003e\n            \u003cspan\u003eDoes the waist section really cool as well as heat?\u003c\/span\u003e\n            \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n          \u003c\/button\u003e\n          \u003cdiv class=\"faq-answer\"\u003e\n            \u003cdiv class=\"faq-answer__inner\"\u003eYes, and they are two separate systems. Heat comes from \u003cstrong\u003etwo 370 × 120 mm carbon fiber elements\u003c\/strong\u003e with \u003cstrong\u003ethree adjustable levels\u003c\/strong\u003e. Cooling is an \u003cstrong\u003eair cooling circuit\u003c\/strong\u003e with \u003cstrong\u003ethree adjustable levels of airflow\u003c\/strong\u003e through the same waist section. Osaki describe the split by season: cooling in summer, heat in autumn and winter. Heat at the waist is common at this size of chair; active air cooling is not.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"faq-item\"\u003e\n          \u003cbutton type=\"button\"\u003e\n            \u003cspan\u003eWhat programs come loaded on it?\u003c\/span\u003e\n            \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n          \u003c\/button\u003e\n          \u003cdiv class=\"faq-answer\"\u003e\n            \u003cdiv class=\"faq-answer__inner\"\u003e\n\u003cstrong\u003eTwelve auto programs in four categories\u003c\/strong\u003e, each running at three intensity levels. \u003cstrong\u003ePeak\u003c\/strong\u003e: Power Stretch, Energize, Tranquil Massage. \u003cstrong\u003eRecovery\u003c\/strong\u003e: Deep Tissue, Clear Mind, Refresh. \u003cstrong\u003ePosture\u003c\/strong\u003e: Upper Body, Back \u0026amp; Spine, Lower Body. \u003cstrong\u003eSchedule\u003c\/strong\u003e: Wake Up, Power Nap, Sleep Mode. Those are the program names as Osaki ship them.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"faq-item\"\u003e\n          \u003cbutton type=\"button\"\u003e\n            \u003cspan\u003eWhat can I drive manually?\u003c\/span\u003e\n            \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n          \u003c\/button\u003e\n          \u003cdiv class=\"faq-answer\"\u003e\n            \u003cdiv class=\"faq-answer__inner\"\u003eSix manual techniques: \u003cstrong\u003eKneading, Tapping, Sync, Shiatsu, Knocking and Deep Shiatsu\u003c\/strong\u003e. On top of those you set 4D intensity across five levels and massage speed across six, choose the zone, and adjust the shoulder position by hand after the body scan.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"faq-item\"\u003e\n          \u003cbutton type=\"button\"\u003e\n            \u003cspan\u003eHow far does the legrest move?\u003c\/span\u003e\n            \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n          \u003c\/button\u003e\n          \u003cdiv class=\"faq-answer\"\u003e\n            \u003cdiv class=\"faq-answer__inner\"\u003eThe legrest extends itself forward and back by \u003cstrong\u003e130 mm\u003c\/strong\u003e, and its angle adjusts from \u003cstrong\u003e16.5 to 89 degrees\u003c\/strong\u003e. Inside it, the calves get triple-row rollers for kneading, rubbing and scraping, the soles get three-disc scraping that alternates forward and reverse, and airbags sit on both sides of the calves and both sides of the feet.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"faq-item\"\u003e\n          \u003cbutton type=\"button\"\u003e\n            \u003cspan\u003eHow does zero gravity work on this chair?\u003c\/span\u003e\n            \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n          \u003c\/button\u003e\n          \u003cdiv class=\"faq-answer\"\u003e\n            \u003cdiv class=\"faq-answer__inner\"\u003eThere are \u003cstrong\u003etwo zero gravity settings\u003c\/strong\u003e, with the backrest between \u003cstrong\u003e131 and 156 degrees\u003c\/strong\u003e. One button takes the chair to either. One Touch Rocking moves the frame separately from the recline.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"faq-item\"\u003e\n          \u003cbutton type=\"button\"\u003e\n            \u003cspan\u003eHow much floor space does it need?\u003c\/span\u003e\n            \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n          \u003c\/button\u003e\n          \u003cdiv class=\"faq-answer\"\u003e\n            \u003cdiv class=\"faq-answer__inner\"\u003eOsaki publish it in millimetres. Upright: \u003cstrong\u003e1650 (D) × 770 (W) × 1150 (H) mm\u003c\/strong\u003e. Reclined: \u003cstrong\u003e2050 (D) × 770 (W) × 830 (H) mm\u003c\/strong\u003e. Converted approximately, that is about 65 × 30.3 × 45.3 in upright and about 80.7 × 30.3 × 32.7 in reclined. Those inch figures are conversions of Osaki's metric specification, not separately published numbers, so treat them as approximate when you measure a room.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"faq-item\"\u003e\n          \u003cbutton type=\"button\"\u003e\n            \u003cspan\u003eHow heavy is it?\u003c\/span\u003e\n            \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n          \u003c\/button\u003e\n          \u003cdiv class=\"faq-answer\"\u003e\n            \u003cdiv class=\"faq-answer__inner\"\u003eNet weight is \u003cstrong\u003e99.3 kg\u003c\/strong\u003e and gross weight, crated, is \u003cstrong\u003e119 kg\u003c\/strong\u003e. Converted approximately, that is about 219 lb net and about 262 lb in the crate. The pound figures are again conversions of the kilogram specification, so treat them as approximate. Plan the delivery route around the crated figure.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"faq-item\"\u003e\n          \u003cbutton type=\"button\"\u003e\n            \u003cspan\u003eHow is it controlled, and what else is built in?\u003c\/span\u003e\n            \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n          \u003c\/button\u003e\n          \u003cdiv class=\"faq-answer\"\u003e\n            \u003cdiv class=\"faq-answer__inner\"\u003eThree ways: a \u003cstrong\u003e7 inch touchscreen controller\u003c\/strong\u003e, quick buttons on the armrest, and \u003cstrong\u003evoice control\u003c\/strong\u003e. The voice command set covers all twelve programs plus pause, continue and power off. Built into the chair are wireless Bluetooth stereo speakers on the left and right, a wireless charger and a USB charger. The chair gives voice prompts and resets itself automatically when a massage finishes.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"faq-item\"\u003e\n          \u003cbutton type=\"button\"\u003e\n            \u003cspan\u003eWhat does the chair sense before it starts?\u003c\/span\u003e\n            \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n          \u003c\/button\u003e\n          \u003cdiv class=\"faq-answer\"\u003e\n            \u003cdiv class=\"faq-answer__inner\"\u003eIt runs an \u003cstrong\u003eauto body scan\u003c\/strong\u003e to find the shoulder position, which you can then fine-tune by hand. Shoulder detection is dual: a \u003cstrong\u003eHall sensor plus microcurrent detection\u003c\/strong\u003e. Osaki also describe a health detection module that reads fatigue, heart rate and blood oxygen and selects a program from those readings; it is a chair feature for choosing a program and the Aeris Duo is not a medical device.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"faq-item\"\u003e\n          \u003cbutton type=\"button\"\u003e\n            \u003cspan\u003eWhat safety systems does it have?\u003c\/span\u003e\n            \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n          \u003c\/button\u003e\n          \u003cdiv class=\"faq-answer\"\u003e\n            \u003cdiv class=\"faq-answer__inner\"\u003eAnti-pinch detection covers \u003cstrong\u003ethree points\u003c\/strong\u003e: the control box, the calf rests, and the gap where the calf section meets the seat frame. Two methods are used, capacitive and an \u003cstrong\u003einfrared dual-beam\u003c\/strong\u003e at the legrest and seat frame, with a \u003cstrong\u003e50 ms response time\u003c\/strong\u003e. Overheat protection runs alongside them.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv class=\"faq-item\"\u003e\n          \u003cbutton type=\"button\"\u003e\n            \u003cspan\u003eWhat is it upholstered in, and what power does it draw?\u003c\/span\u003e\n            \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n          \u003c\/button\u003e\n          \u003cdiv class=\"faq-answer\"\u003e\n            \u003cdiv class=\"faq-answer__inner\"\u003eThe chair is finished in \u003cstrong\u003edurable, water-resistant PU leather\u003c\/strong\u003e and operates on \u003cstrong\u003e110–220 V\u003c\/strong\u003e.\u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n\u003c\/div\u003e\n","brand":"Osaki","offers":[{"title":"Black","offer_id":49251251028219,"sku":"OSAKI-AERIS-BL","price":4499.0,"currency_code":"USD","in_stock":true},{"title":"Brown","offer_id":49251251060987,"sku":"OSAKI-AERIS-BR","price":4499.0,"currency_code":"USD","in_stock":true},{"title":"Taupe","offer_id":49251251093755,"sku":"OSAKI-AERIS-TA","price":4499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0044\/9341\/0393\/files\/aeris_1500px_black.jpg?v=1788216492","url":"https:\/\/www.recoveryforathletes.com\/products\/osaki-4d-aeris-duo-massage-chair","provider":"Recovery For Athletes","version":"1.0","type":"link"}