Keep cool & comfortable with the Waeco MCS10 Climate Seat Cushion. The padded cover circulates a gentle, cool breeze. Specially formed surface for good lateral support. Perfectly fits to the vehicle seat. Cotton-polyester mixture, breathable. Two power settings: 1st setting = pleasant continuous cooling, 2nd setting = rapid cooling with commencement of driving. Seat support with connecting cable & attachment hook. Zipper bag for tucking away in the Winter. An extension cable is recommended for operating on the passenger side. Operating voltage is 12V.