Overview Pro-level dynamic air compression for legs. Normatec 3 uses precise, zone-by-zone inflation/deflation to boost circulation, reduce soreness, and leave your legs feeling fresh after training or long days on your feet. A compact control unit, intuitive interface, and TSA-carry-on approval make it easy to recover anywhere. Features 7 compression levels with ZoneBoost™ for targeted intensity where you need it most. Patented pulse pattern designed for efficient fluid movement and muscle recovery. Lightweight control unit; simple LED interface and Bluetooth® app connectivity. Premium, overlapping chambers for gapless compression from foot to thigh. TSA carry-on approved so you can recover on the road. Specs Battery life: up to ~3 hours per charge (control unit). Control unit weight/dimensions (approx.): 3.2 lb; 4 x 4.5 x 8.5 in. Sizes: Standard and Short (for users ~5'3" and under). In the box Control unit, (2) leg attachments, hose, power supply.