The Heated Shiatsu Massage Cushion can Help Sore Muscles, improve circulation and relieve tension whether you're in your home, office or traveling. Two powerful massage motors provide a gentle kneading massage along your back while vibration massages your upper legs. A controller lets you choose among three levels of massage. Auto shutoffafter 15 minutes. Velcro straps secure the cushion to most chairs or car seats. AC adaptor and 6' power cord included. 40" x 17"