Features1Timing Function: Press the temperature button or massage button to start heating or massage function, you can select the heating and massage time at a fixed time. 2Increase Blood Circulation: The massage function can be used in conjunction with heating, which can increase blood circulation and relieve arm pain and fatigue. 3Drive Away Cold: Heated arm brace can provide soothing warmth to the hands and arms, suitable for all ages, especially for those who are afraid of the cold. 43 Gears Carbon Fiber Heating: Built in carbon fiber heating wire to achieve uniform and large area heating, rapid heating within a few seconds. 5Wide Application: Heated arm brace can treat arm pain, arthritis pain, carpal tunnel pain, tendinitis, Raynaud's syndrome and other hand pains.SpecificationItem Type: Heated Arm BraceMaterial: SBR combined fabricArm Length: Approx. 84cm / 33.07in Plug: US Plug 110-240VPackage List1 xHeated Arm Brace 1 x Plug