Heats & cools; 2-speed fan; Controller built into cushion so there are no parts to lose; Soft, durable cover with 3D mesh fabric that creates air passages even when compressed by weight; Antislip backing; Easy to install: headrest strap with buckle clip, back strap with hook & loop closure & 2 mid-cushion clips; 6.75ft power cord plugs into 12V accessory port; 3A fuse for safety; Power consumption: 24W;