Product NameController version of the heated shoulder pads (single). Material: Neoprene fabric.Battery capacity;5000amh (built-in battery).Battery voltage: 5V.Charging method: USB to Type C (cable length 1000MM) .Massage gears: 3 speeds.Motor vibration frequency: 4100HZ .Motor generated noise: 62Hz.Shoulder protector size: 450*300MM.Long extension belt: 800*50MM, short extension belt: 310*50MM.Weight (kg ): 0.525kg.Packing size (cm): 21*15.5*6.Box Size: 51*39*33cm/24PCS/13.8KG.Product list: knee pads + manual + color box + usb cable.Product feature1.Heating Massage 2-in-1 Knee Pads - 3 modes of heating and vibration, you can enjoy all 3 functions at the same time or separately. 2.5000mAh lithium battery with low consumption; 3 levels of heating and vibration settings, lowest temperature 45 degrees, mid-range temperature 65 degrees, highest temperature 75 degrees; heating, massage so that the knee is no longer fatigue.3. Charge 3 hours, long life, heating and vibration at the same time to open to three, the life time can reach 90-120 minutes.4. The best choice for gift . Touch screen button, digital display of temperature and power for better experience.5. Under the state of shutdown, press the key for 1.5 seconds to enter the standby mode. Digital tube shows the current temperature, no action 5 minutes after shutdown.