Features: 1.Improve Driving Safety: The reversing alarm can prompt the driver to the situation behind the vehicle through the sound, remind the driver to slow down the speed or brake in time, effectively avoid accidents caused by poor vision of the blind spot when reversing. 2.107DB: This car reversing horn produces a powerful beep sound of 107 decibels, which will be louder in actual use, and the work performance is stable and excellent, ensuring driving safety. 3.Low Energy Consumption and Long Servive Life: The reversing alarm can effectively reduce energy consumption, extend service life, does not require frequent replacement, reducing maintenance and replacement costs. 4.Waterproof and Durable: The reversing alarm is covered with premium resin materials, which has excellent water resistance and high temperature resistance, and can work stably for a long time in various harsh environments. 5.Simple Installation: The reversing alarm buzzer does not occupy the space in the car, no need to change the original structure of vehicle, and it is suitable for using a variety of DC power supplies, which is convenient for users to install and use. Specification: Item Type: Reversing Horn Material: ABS, resin Rated Voltage: 9V-80V Operating Current: 0.2-2A Power: 20W Sound Level: 1073db Application: Suitable for trucks, trailers, mechanical engineering vehicles