Ongaro's standard single trumpet horn features a maximum amp draw of 4 amps. 120 db rating at 1 meter. The 12V horn provides increased performance and clarity of sound in a durable stainless steel construction. Five-year warranty covers rust and corrosion of the non-electrical components of the horn. 16-1/2"L x 4-1/2"W x 4-1/2"H.