Product Name:Knee pads and shoulder pads (single) Product colour: grey Material: ABS+submarine fabric Rated voltage: 5V Rated power: 7.5W Charging method: usb charging Battery capacity: 5000 mAh Heating temperature: 45-50-60 degrees Product gear: three gears Endurance time: one week Product function: vibration massage heating hot compress Product weight: 470g Packing size: 23*17.8*8cm Packing: colour box Product List：Knee massager*1, 58CM extension belt*1, USB charging cable*1, English manual*1, neutral colour box*1 Product Features 3 heating modes (45℃/50℃/60℃) and 3 types of vibration strength selection, to adapt to the needs of different states of massage strength; Far infrared heat, knee care thermal technology. Far infrared heat release can quickly penetrate deep into the subcutaneous tissue to efficiently relieve pain, long service life, faster heating, more uniform heat;. Wireless charging: Built-in 5000MAH rechargeable battery, fully charged can walk while massaging the knee, the battery life can last up to a week; Multi-function: the massager is also equipped with 58CM extension belt, not only can massage the knee, but also can massage the elbow and shoulder. Easy to use: Long press the button for 3 seconds to start or end the work. Fix the machine in the knee/elbow/shoulder position, then press the temperature button to turn on the heating function, then press it again to adjust the temperature. Press the vibration button to turn on the vibration function, press again to adjust the vibration intensity.