Features: 1.Red Light Heating Function: It can be heated up quickly 3 levels of temperature adjustable humanized temperature control setting intelligent temperature control to meet the needs of different environments. Three adjustable vibration massage simulating human massage. 2.Heating and Massage in One: You can enjoy both functions simultaneously or separately. Vibration combined with heating can completely relieve and relax your muscles and reduce stress. The hook and loop strap is designed to adjust the fit angle and tightness at will. 3.Rechargeable Design: 5000mAh high capacity rechargeable battery USB charging design easy to carry and use anywhere. 4.Easy to Operate: Equipped with digital display controller touch screen button design panel display temperature you can use the controller to control the temperature and vibration mode easy and convenient to operate. The anti-touch mode is switched on to prevent the keys from being touched by mistake during the use of the product. 5.After-sales Service: If you have any problem please contact us immediately we will help you solve it as soon as possible. Specifications: Material: Neoprene Colour: Blue Operating Voltage: 5V Operating Current (heating top grade): 1850mA Charging Time: 2-3H Battery Capacity: 5000mAh Massage (Highest Gear) Endurance: 14.2h Heating ( Highest Gear) Endurance: 140-160Min Massage + Heating (Highest Gear): 100-120Min Knee Pad: 72*23cm Long Strap: 67*5cm Short Strap: 60*5cm Package Size:24*6*15cm Notice: 1.Actual color may be slightly different from the image due to light effect. 2.Please allow 1-3cm deviation due to manual measurement. includes: 1 * Knee Pad 1 * Long Strap 1 * Short Strap 1 * USB Cable "