Emergency Sound , Speaker Car Horn 125DB 12V Universal Megaphone 5-Sound with Handheld Mic for Auto Motorcycles Specification: Item Type: Car Alarm Horn Material: ABS Voltage: 12V Power: 100W Current: 3A Sound Level: 125db Suitable for: 12V universal How to Use: 1. Check the battery 2. The black wire is connected to the negative pole, and the red wire is connected to the positive pole, the yellow wire is connected to the horn. 3. Fix the mounting position with tapes 4. Ready to use Package List: 1 x Alarm 1 x Megaphone 1 x Control Module 2 x Mounting Accessories