Hyperice X 2 Shoulder is a fully electronic contrast therapy device that delivers next-level performance with deeper cold, more powerful heat, and built-in compression—so you can warm up faster, recover smarter, and come back stronger. Alternating heat and cooling stimulates circulation to reduce soreness and help the body recover faster. Full 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 shoulderIdeal for:Temporarily alleviate pain and sorenessDecrease inflammationSupport injury treatment for a variety of sprains and strainsRelax and soothe stiff jointsLoosen muscle knotsSupport warm up and recoveryWhat's included: Hyperice X 2 Shoulder12V wall charger + AC cable