Fully electronic contrast therapy device delivering next-level performance with deeper cold, more powerful heat, and built-in air compression—so you can warm up faster, recover smarter, and come back stronger. Temporarily alleviate pain and soreness Decrease inflammation Support injury treatment for a variety of sprains and strains Relax and soothe stiff joints Loosen muscle knots Support warm up and recovery Specifications 1.5 hour battery life on max heat setting + 1 hour battery life on max cold setting 1.1 kg Bluetooth® TSA friendly 5 levels of heat (105F (40C), 109F (42C), 113F (45C), 117F (47C), 121F (49C) 5 levels of cold (60F (15C), 55F (12C), 50F (10C), 45F (7C), 40F (4C)) 5 levels of compression (80 mmHg, 100 mmHg, 120 mmHg, 140 mmHg, 160 mmHg) Can be used on both left and right knee What's included Hyperice X 2 Knee12V wall charger + AC cable2 extenders to adjust the length of the straps