Air Powered - VERY LOUD, 12-volt. Two durable plastic trumpets and compressor cover with the high-tech carbon-fiber-look. Transform an everyday engine compartment into the picture of style and performance. The WOLO-BANDIDO is manufactured with a hydrographic clear-coat process, which provides a durable high-definition carbon-fiber-look. Installation is easier with Wolo's compact chrome plated compressor and is maintenance free. Kit comes complete with all needed mounting hardware, hose and relay.