Fitment:for Ford for F-150 MK11 2004-2008Specification:Condition:Brand NewVoltage:12VSound level:110-125dbFrequency:410Hz/510Hz(20Hz)Material:Plastics + Copper wireFeatures:*With wiring, its easy to install on the car. Quality Guaranteed, One of the best in the market. Lasts For Years.*High volume horn with unique waterproof and dust-proof cover, provides long life service.*Copper terminal with better conductivity, stable characteristics and high reliability.*Ultra loud tone has a warning effect, improve your riding or driving safety.2 Pcs Snail Horns + 4Pcs Brackets+Horn Speaker Adapter Wiring Harness Pigtail Socket for Ford