Car Alarm Horn, Emergency Tool Megaphone Warning Speaker for Car Motorcycle Mopeds Specification: Item Type: Car Alarm Horn Material: ABS + Metal Voltage: 12V Power: 30W Current: 2A Horn Diameter: Approx. 100mm/3.9in Sound Level: 105db Working Temperature: -20 +50 degrees Celsius 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 3. Fix the mounting position with tapes 4. Ready to use Package List: 1 x Alarm Horn 1 x Mounting Accessory