Effective Air Pressure: Min 60 mmHg, Mid 90 mmHg, Max 140 mmHg. Built-in curved modules fit calves perfectly for extra comfort. Features 4 massage zones and 3 modes for therapeutic and relaxation needs. User-friendly smart controller. Relaxes legs, enhances sports performance, increases flexibility, aids recovery, reduces swelling, prevents varicose veins and cramps, promotes circulation, and enhances metabolism. Super quiet, hands-free operation with stylish, zipper wearable technology.