This seat cushion has a sleek, ergonomic design conforms to the body's natural position. The Infra-heat in lower back keeps you warm when driving in cold weather while it keeps you physically comfortable with its polyester foam cushion. A multi-function control allows you to target specific areas of the body with its pinpoint massaging relief. Lightweight for easy travel and storage. Ideal for use in car, home, and office. Operates on car 12V DC socket. AC adapter for home use also included.