Product Description LOUD! Stylish! Rugged! Producing an earsplitting 120 decibels of sound, the SoundBomb is 4 times louder than a standard motorcycle horn and twice as loud as a standard car horn! The DENALIâ„¢ SoundBomb was designed for those who want to be heard, but still want to maintain a stylish look. Thanks to its compact design and blacked-out housing, the SoundBomb will practically disappear once installed. The unique design of the DENALI compact horn features a rugged molded clamp that mechanically mates the compressor to the acoustic unit. This makes the SoundBomb virtually indestructible even in high vibration applications. Compatible with all CANbus electrical systems. Specs: Sound Output: 120 dB at 3 feet Current Draw: 20 Amp Dimensions: 5.4” (137mm) wide x 4.5” (116mm) high x 3.6” (86 mm) deep Stylish All Black Design CANbus compatible What’s in the Box? Single Piece Electro-Pneumatic Horn 12 volt, 30 amp relay Fitment Note: Add our BMW wiring adapter (DNL.WHS.10100) for plug & play installation to BMW motorcycles. Instruction Manual TT-SB.10000.B