Details Features: 1.Two-in-one heating and massage; 3-level heating (maximum temperature 75℃) and three vibration modes for you to choose. You can enjoy the three functions at the same time or separately. 2.Touch screen button design; the panel displays the temperature and power; with 5000amh large capacity battery.USB recharge design; Charge 1 time; it can be used 75 minutes. 3.Elastic neoprene material and adjustable straps fits different girths of legs or arms and maximizing comfort on skin.Fits girth of 18 inches or less. 4.Vibration combined with heating therapy offers complete pain relief & relaxation to muscles andreduces stress; helping accelerate recovery from injuries while delivering targeted relief from paincaused by frozen shoulder; dislocated joint; muscle sprain strain; shoulder stiff&soreness.