■ 6 build-in air cells for the ultimate massage sensation for your whole body, from neck to calves (AM-d22M6-T2). ■11 build-in air cells for the ultimate massage sensation for your whole body, and three different pulse functions with unique leg-compressed actions. (AM-d32M7-T2) ■Super quiet external air pump included ■ Penetrate deep tissue massage is achieved by the air cell inflationary / deflationary process. ■Different intensities to choose from for customization ■Does not numb your skin under prolonged usage. ■Illuminated hand control wand to choose your personal massage o preference ■Safe auto 15-min shut off mode.