shiatsu neck&back massage cushionSH-C2 Far infrared ray car therapy heating pas is composed of a handheld controller and a heating pad made of carbon fiber. The handheld controller is used for the adjustment of temperature and time of the heating unit. Heating pad is used to keep warm and health care by producing heat. 1. Easy to operate. 2.Precise time and temperature control by microcomputer chip. 3.Adopting UL approved carbon fiber heating wire, uneasy to break. 4.High heating efficiency modern Far Infrared Ray heating technology.Technical data: Input volts: DC12-14V Input power: 40W (Max.) Self-control temp: 30-40ºC Self-control time:15-90 Min.