The All-New Eagle Universal Backup Alarm sounds when the vehicle is in reverse. Feel free to make use of our professional installation team to assist you with assembly. Upon purchase, you'll receive vehicle-specific instructions. However, if you have further questions or need technical assistance, please contact one of our experts. NOTE: Installation Hardware NOT included - use hardware from stock brackets. NOTE: If you have a bedliner, the holes will not match the truck hole spacing specs. You'll need to make the pre-drilled holes larger to match—1-Year Warranty., 107DB Universal Backup Alarm - two-way backup alarm, easy installation, IP67 Waterproof, 100-200m control distance, 12V-80V Voltage, 18W, Electric Current: 0.2-0.8A, >80,000 Hour Liftspan, 102 x 41 x 71 mm Size