Specification:Type:Backup Alarms Horns Color:BLACKAudible tones: BeepInput voltage:9-16VDCCurrent consumption: ≤0.4AVolume: ≥ 110 dBSize: 5.7*4*3.3cm (LxWxH )Description:Water resistantEasy installationWarn pedestrians ,children and animals when you are reversingFit for all carPackage Included:1 X Horns With Wire