Features 1、Functions: Using this heating pad has the functions of "dispelling wind and dispersing cold" and "warming channels and unblocking collaterals". Temperature control and heating awaken vitality and activate stiff muscles and ligaments. 2、Heating: The electric chair warmer heats evenly, warm and comfortable. 5 seconds of fast heating. 30 seconds of constant temperature. 5 volts of waist back heating. 3、Hip Pain Release: This heated chair pad is heated for 1 minute after being plugged in, perfectly relieving back, hip pain caused by sitting for a long time. 4、Premium Graphene: The heated chair pad is made of premium graphene material that is comfortable and has good performance. 5、Working Voltage: The voltage of this chair heating is DC5V that is safe to use. Specifications Item Type:Chair Heating Mat Material: Graphene Gross Weight: 1097g/38.7oz Product Size: 90x46x6cm/35.4x18.1x2.4in, excluding pillow thickness Color: Light grey Package List 1 x Chair Heating Mat 1 x Power Cord