Product name: electric knee padsSpecification: 1Function: vibration massage + hot compressRated power: 7WHot compress temperature: 45-65Part of use: LegsProduct list: Kneepad*1, 5000mAh power bank*1, extension cord*1, manual*1, packing box*1 Note: The two massagers in the picture are only for display purposes, and the actual sale is one.Graphene heating element, heat conduction quickly, heat evenly, accelerate blood circulation in the legs, relieve joint pain, sports injuries, and knee weakness.Five temperature ranges of 45-65, one-key adjustment, will not burn.4 o'clock vibration massage, soothing knees and eliminating fatigue.Wireless design, built-in mobile power, you can walk around freely while using it.Elastic telescopic straps, the size can be adjusted freely according to the thickness of the legs.110g is light and thin, and it doesn't feel heavy when tied to the leg.Sealed and waterproof design, can be washed with water, and continue to shiyong after drying.With 5.0V safety voltage, there is no need to worry about electric shock, and it is safe to use.