The Premium Seat Heater kit comes with 3 heat settings to make your journeys even more comfortable. Low - Medium & High, each kit comprises a digital electronic controller that automatically adjusts voltage for each vehicle type as well as a one hour safety shut off mechanism. There is no risk of  leaving the heater on and draining the battery as the heater will shut off as soon as the ignition is switched off. Our premium kits are car specific - we have different heating pad packs to suit almost all car seats. When ordering please tell us the make, model and year of your car.