RoadPro RP-1368HM 12V Heated Seat/Back Cushion with 5 Powerful Motors for Upper and Lower Back Massages, Black Orthopedic design for support and massages Plugs directly into your cigarette lighter socket Features secure strapping system holds cushion tight to most vehicle seats Safety heat function automatically turns off the unit when weight is removed from cushion Includes control unit for all heat and massage functions