112DB 30W Loud Reverse Buzzer Horn for Truck Trailer Car Backup Warning Alarm Features： 1、Function: The reversing alarm can alert the vehicle driver of the situation behind the vehicle through sound and remind the driver to slow down or brake in time. 2、Safe Driving: Effectively avoid car accidents caused by poor vision in the blind area when backing up, and to ensure driving safety. 3、Low Consumption: The reversing alarm can effectively reduce energy consumption and extend the service life, while suitable for using a variety of DC power. 4、Weatherproof: Car back up alarm is covered with resin, which has moisture proof, oil proof, temperature proof and weather proof performance. 5、Easy Operation: The alarm does not require changes to the original structure of the vehicle to install, does not occupy the space inside the car, easy and fast installation. Specification： Item Type: Reverse Back Up Warning Material: ABS, resin Model Number: YC-315 Rated Voltage: 12V - 24V Working Current: 0.6-2A Power: 30W Sound Level: 112±4d8 Applicable Model: Suitable for truck trailer mechanical engineering vehicle Package List： 1 x Reverse Back Up Warning