Technical details Size (S/M/L): XL Calf circumference: 40 - 45 cm Control Type: Button Machine washable: Yes Number of vibration settings: 3 Materials Polyester Nylon Germanium Waterproof: Yes Product color: Black Types of massage: Pressure massage Proper Use: Calves Power Power supply type: Battery Working time: 45 min Replaceable battery: Yes Weight and dimensions Battery dimensions: 47 x 52 x 11 mm Packaging data Number of pieces: 1 Package contents Cables: USB Type-C Battery included: Yes Case: Yes Adaptor: Yes Safety warning Warnings Use according to the instructions in the instruction manual. Keep out of reach of children. Do not use on damaged skin or wounds.