KAATSU B2 — Professional Blood Flow Optimization, No Tubes Required
The KAATSU B2 is a lightweight, tubeless, Bluetooth-enabled system that brings professional-grade blood flow optimization to your daily routine. Controlled entirely from your smartphone with the free KAATSU Connect app, the B2 delivers proven KAATSU modes safely — anytime, anywhere — without bulky equipment.
Backed by decades of clinical research, the B2 enhances circulation, boosts performance, supports faster recovery, and helps prevent muscle loss during rehabilitation. Share your session data securely with coaches, physicians, or family for personalized support.
Train. Recover. Rehabilitate. All from your phone.
Why Athletes Choose the B2
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Truly tubeless — No connector tubes means unrestricted movement during any exercise, walk, or rehab session.
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Bluetooth-enabled — Pair wirelessly with your smartphone and control every session from the KAATSU Connect app.
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App-controlled precision — Adjust pressure, select modes, and track sessions directly from your iOS or Android device.
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Shareable session data — Securely share your data with coaches, physicians, or family for personalized guidance and accountability.
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Clinically backed — Decades of research support KAATSU's approach to circulation, performance, and muscle preservation during rehab.
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Go anywhere — Lightweight and compact, the B2 is built for athletes who train on the move.
What's in the Box
- KAATSU B2 controller units and AirBands
- Quick Start Guide
- Charger with USB-C cable
- Free KAATSU Connect smartphone app (iOS & Android)
- Free access to the KAATSU 101 online educational course
Built for Life in Motion
Everyday Athletes
Get more out of every session with a system that moves with you — no tubes, no hassle, just results.
Rehab & Recovery
Support muscle preservation and faster healing with clinically backed blood flow optimization, guided by your care team via shared session data.
Travelers & On-the-Go Users
Lightweight, tubeless, and app-controlled — the B2 fits your lifestyle whether you're at the gym, the hotel, or the track.
Frequently Asked Questions
How is the KAATSU B2 different from other KAATSU products?
The B2 is fully Bluetooth-enabled and tubeless — no connector tubes required. It's controlled entirely via the KAATSU Connect app on your iOS or Android device, giving you a clean, wireless experience from start to finish. See the Product Comparison page for a full breakdown.
Can I use the KAATSU B2 in water or a sauna?
No. The B2 controller units are not waterproof and should not be used in pools, saunas, or any wet environment. Always keep the device dry to ensure proper function and safety.
How do I know what size AirBands to order?
Sizing instructions are available on the AirBands page.
What data is collected by the KAATSU Connect app?
The app records session data including date and time, duration, mode, and pressure settings. You can choose to share this information with healthcare professionals, coaches, or family members — but your data stays private unless you decide to share it.
