The Wolo 308-2T Sonic Blast is designed for the vehicle owner that wants to dress-up their engine compartment and demands a powerful horn sound that will be heard. Replaces existing horns or ideal for new horn installations. Two horns, one high tone and one low tone, have a beautiful red and black painted finish. Sonic Blast easily installs in any 12-volt vehicle. Each horn has a heavy-duty steel-mounting bracket that requires one bolt mounting. Rugged, painted all metal construction, will ensure the vehicle owner many years of dependable service. If you want a powerful alerting sound, go no further, Sonic Blast is the horn for you. They will hear you before they can see you! The kit includes mounting hardware. Instruction in English/Spanish.