Product Name: Dual Air Horn with Compressor Model NO.: CH002 Energy Exchanging Mechanism: Electrical Connection Mode: Double Wire Voltage: 12V Sound Frequency: High Pitch Material: Zinc Alloy Shape: Basin-shaped Speaker Design: Tweeter Type: Air Horn Itme Name: Car Air Horn MOQ: 1000PCS Production Time: 15-30days Sample Time: 3 Days Color: Black or Red Transport Package: Color Box Specification: 22x7.5CM, 17x6.5CM Origin: China HS Code: 8512301100 Product Description Car Dual Trumpet1.Super Loud Voice.150dB extremely loud. The sound can be heard clearly away from long distance, Great sound quality, extremely stable frequency.2. Universal and Durable.The horn kit is designed to work on any 12 Volt DC vehicles. Including Trucks, SUV, Jeep, Buses, RV, Vans and Boats.(NOTE:IT onLY FIT FOR 12V DC POWER)3. Easy To Install.It is very easy to install, you just need to splice a wire from the positive screw terminal to the power wires of the original horn wire or a horn switch installed on the dashboard, then splice a wire to the ground(Negative wire). Almost everything you need for installing this air horn with the fitting kit is included in package. You may just need to buy some electric wires.4. Premium Quality .Made of high quality weather resistant plastic and durable,rust-proof metal, ensures long service life.It can work in a variety of temperature environments.