Volume: 107 dB Type: Car reversing buzzer Universal fit for DC12-24V automotive vehicles. Perfect for safeguarding safety while driving. Mainly used for car, excavators, construction machinery, special vehicles, parking and a variety of large vehicle container vehicle reminders. Color: Black Material: Nylon Package Contents: 2 * Reversing Buzzer Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.