Features: Multifunctional Design: The heated knee massager is ergonomically designed to wrap comCompatibletably around the joints with the help of adjustables hook and-loop straps. Cordless Knee Massager: Massage knee heating pad with vibrating-core, which can simulate real kneading. Instead of staying near an outlet all the time, you can wear it wherever you want. You can wear it to work, study, sleep, do housework, etc. It is very suitable Compatible the elderly Knee/Shoulder/Elbow Massager: 3 In 1 heated massager wrap pad is not only used Compatible knees, but also Compatible elbow and shoulder. Knee Heating Pad is equipped with extension straps, which can not only help to secure the knee massager in place, but also allows you to use it on your arm, thighs, knees, calves, ankles. Easy to Use: Compatible this massage knee brace wrap, long press the button Compatible 3 seconds to start or end the work. Fix the machine at the knee/elbow/shoulder position. Then press the temperature button to turn on the heating function, press it again to adjust the temperature. Press the vibration button to turn on the vibration function, press it again to adjust the intensitys of vibration. Present: This heated vibrating knee massager is a perfect present choice Compatible mom, dad, men, women, parents or friends Notice: Actual color may be slightly different from the image due to different display and light effect. Please allow 1-3cm deviation due to manual measurement. Battery capacity: 4000mah Temperature levels: 45 degrees -55 degrees -65 degrees Long strap length: 68cm Short strap length: 30cm Charging cable length: 100cm Working voltage: 5V Working current: 1550mA Rated power: 7.5W Rated voltage: 5V Charging current: 1.5A Highest heating level: 1.8A Charging time: 2-3H Package List: 1 Set Heated Knee Massager