[feature] PREMIUM MATERIAL: The reverse buzzer is made of ABS material, lightweight, sturdy and durable. It has good wear resistance, high temperature resistance, corrosion resistance, aging resistance and long service life. High sound level: The horn is loud and clear, and can emit a powerful buzzer of 105dB, effectively reminding pedestrians to attract attention, and greatly improving safety and reliability. Easy to install: The buzzer horn is very easy to install without taking up a lot of your time. It is very convenient and can effectively save your energy and time. Protection function: The car reversing horn has an automatic protection function, which can protect it when the wires are connected reversely or incorrectly. Wide range of applications: car reversing alarms are commonly used in SUVs, commercial vehicles, engineering vehicles, trucks, trucks, etc. [product information] Product name: Truck buzzer Colour: Black Material: ABS + electronic components Dimensions: Please refer to the size chart Packing list (available with purchase of one item): Truck buzzer*1 beg to be excused: 1. Due to the long shipping time, the items may be damaged during transportation. If the items are damaged, please leave us a message through the official website immediately before leaving a comment and I will solve the problem for you. 2. Due to manual measurement, there may be an error of 1-3cm in size. 3. Colors may vary depending on your monitor.