Description:Multi-function: provide vibration maage and heating for your joints. It can be used at knees, shoulders and armsErgonomic for the knee, shoulder and elbow design, can be fixed on any jointsWirele and rechargeable: The built-in 2300mA rechargeable battery makes it easy to use even on the road.Use USB data cable (note that the product does not include USB data cable)Selectable heat further releive knee joint, shoulder joint and elbow joint,Comfortable vibration maage ease joint pain, muscle stiffne and joint swellingEasy to operate: 3 simple buttons include maage, heating and timing. Vibrating maage and heating can be used not only individually but also together. Heating function up to 65C, every 10 minutes. With safe overheat protection design, can choose 5 minutes, 10 minutes, 15 minutes of automatic shutdownSpecification:Four health advantages: acupoint physiotherapy, high frequency vibration, magnet physiotherapy, infrared hot compreMaterial:ABS Plastic and high grade clothSize:LxW:72.8x22.8cm/28.66x8.98 inchCharged and heated kneepad maagerBuilt-in battery: 2300mAhRated voltage: 110V-240VCharging time: 2.5-3 hoursPower: 12WHeating temperature: 45-65 degreesTemperature control range: 45-65 degreesSize Chart:1Piece Knee maage machine with EU PlugPackage Includes:Conversion: 1 inch=2.54cm, 1cm=0.393 inchPlease allow slightly 0-1cm difference due to manual measurement.Colors can appear different depending on light and how the listing is viewed.Thanks for your understanding and attention. Wish you a pleasant shopping experience!