Comfortable sturdy fabric provides excellent durability. 4 vibrating motors soothe neck, shoulders, back and thighs. Strapping system allows you to fasten to most any chair. Powerful and portable for the home or office. Easy-to-use hand control with low, medium and high power settings. L.E.D. indicators light up to let you know which massage motors are on. Adapter included for home and office use. Heat option provides soothing comfort for your back muscles. Cushioned lumbar section for optimal seating support and comfort. Limited 1 year manufacturers warranty. This item is not for use in a car.