General description Made of high-quality ABS and metal, this 4' 12V 20W Car Truck RV Air Electric Siren Horn Speaker delivers a powerful 110dB alarm sound. Its durable construction ensures longevity and resistance to aging, making it an ideal choice for various vehicles. Technical specifications Material: ABS + Metal Color: Black Voltage: DC 6-12V Power: 20W Sound Level: 110dB Size: 6 x 9 x 10.3 cm / 2.36 x 3.54 x 4.06 inch Weight: Not specified Installation Easy to install on any 12V DC power supply vehicle, including cars, trucks, golf carts, go-karts, RVs, and boats. The metal base features three holes for secure mounting. The nut between the body and the base can be adjusted to enhance sound projection. Usage Connect the red wire to the positive electrode and the black wire to the negative electrode for operation. Ideal for alerting or alarming in various situations. Other information Package includes: 2 x 12V Car Alarm Siren Note: Light shooting and different displays may cause