■AIR pressurized massage. ■ 5 build-in air cells for the ultimate massage sensation from your neck to thigh ■ Super quiet external air pump included. ■Penetrate deep tissue massage is achieved by the air cell inflationary / deflationary process. ■ 3 massage intensities to choose from. ■Does not numb your skin under prolonged usage ■Multi-function L.E.D. ■Great for auto, home, or office use