Integrated Backrest frame conforms to the natural shape of your back, providing supportive comfort and helping to maintain proper posture. Adjustable Lumbar Pad provides personalized comfort and support. Cushion has pre-programmed massage options and an LED Touchpad Controller that stores neatly in the integrated pocket. The seat heater enhances comfort in cold weather. Includes 12 Volt DC and 110 Volta AC Adaptor to allow use in automobile and home or office.