Stebel 11451128C - Magnum Electric Low Tone Horn Chrome 1 pc Electromagnetic style horn in an Automotive Chrome ABS finish Single tone sound at 410Hz and 136dB Compact size for easy installation (4" x 3" x 2 1/2" tall) 3 amps at 12volts - Fits under most stock motorcycle covers Will work with any 12 volt system (car, truck, motorcycle, golf cart, RV, bus, Rhino, Gator, ATV, boat, Hi-Lo, )