Features： 1、Relieve Elbow Discomfort: Elbow support heating pad provides super comfortable heat therapy for your elbow, and has massage function, which can effectively relieve tennis elbow, elbow arthritis, strain joint, joint cold. 2、Carbon Fiber Heating: The built in carbon fiber heating wire of elbow guard releases far infrared wavelength, uniform heating, more accurate temperature, so that the heat is distributed deep into the human skin. 3、Adjustable Temperature and Massage Strength: The elbow protector has three different levels of temperature and three different levels of massage strength, allowing you to adjust according to your elbow. 4、Moxibustion Therapy: Built in net, can be placed moxa pieces, with hot compress to make moxa molecules penetrate deep, additional moxibustion treatment, accelerate the recovery of the elbow. 5、Easy and Safe to Use: USB interface charging, 5V low voltage, far below the safety voltage of the human body 36V. Mobile power supply, charging bank, mobile phone charging head, car charger can supply power. Specification： Item Type: Elbow Heating Wrap Material: OK cloth, carbon fiber Product Size: Approx. 43 x 25.5cm / 16.9 x 10in (material is elastic, manual measurement has a little error) Heating Temperature: 3, red 65 degrees Celsius, white 55 degrees Celsius, blue 45 degrees Celsius Massage Gear: 3 Usage: Plug in Cleaning Method: Do not wash or machine wash, can be wrung out of the wet towel wipe Package List： 1 x Elbow Heating Wrap 1 x Cable