Features: 1.FAR INFRARED HEAT: Heated neck wrap uses graphene, made of low voltage ultra thin heat film emits far infrared rays to produce a warming effect, gently inserted to release heat. 2.THREE LEVELS TEMPERATURE ADJUSTMENT: Intelligent temperature controller, free timer temperature adjustment, three levels temperature adjustment, according to individual comfort operation. 3.RELIEVE PRESSURE: Moxibustion care hot compresses penetrate the neck, relieve neck pressure, improve circulation of blood, warm meridians. 4.UNIFORM HEATING: Heating neck brace using far infrared heat, through the electric heating, uniform heating of the neck, overheating automatic protection, safe timing power off. 5.MULTIPLE HEATING METHODS: USB interface can be connected to the computer / cell phone charger and other hot compresses on the neck at any time. Heating temperature low temperature file 35 , medium temperature file 53 , high temperature file 70 . specification:Item Type: Cordless Neck Heating Pad Material: Graphene Electric Heating Pads and Velvet Product : 1 Set Product Use: Household Scope of Application: Most of the Scene Size: Approx. 13 x 51cm / 5.1 x 20.1in Color: Sea Green PackageList:1 x CordlessNeckHeatingPad 1 x USB Cable 1 x Mugwort Bag 1 x English User Manual