A new-patented horn technology developed by Wolo with R & D extended over one and half years. An all-electronic horn provides many advantages over the existing electro-mechanical types. SPECIFICATIONS: Low current demand, works directly from horn switch, No relay. - Capable of using a lighter gauge of wire in horn circuit. - No adjustment screws for frequency, Tamper-proof. - No diaphragm fatigue, no volume or frequency changes. - No moving points to pit or wear-out, All internal electronic components epoxy making them virtually weather resistant. - Plastic molded housing. Assortment of mounting brackets. - No moving contact points, no sparks, no induced noise in sensitive equipment. - Power terminals molded into heavy plastic housing eliminating rain and spray water damage as is common in conventional horns.