WOLO’s BAD BOY CHROME ™ has all the same features, as the original BAD BOY ™ with a powerful dual tone air horn sound that is two times louder than the factory horn and has a bright chrome plated finish. Works on all 12-volt vehicles: cars, trucks, motorcycles, boats and etc. The one-piece patented design requires no hoses like conventional air horns. Easily installs with one bolt that is provided, transfer the factory horn wires to the air horn compressor and the installation is complete. Built with a heavy-duty compressor that is maintenance free assuring years of dependable service. 118 Decibels-530/680 Hz Measures 2 ½ inches W x 4 ½ inches L x 4 ½ inches H. Single.