Feature 1This kit including 1 x speaker, 1 x PA mic, 1 pack of installation kit, which can completely meet your needs. 2100W siren, with 7 alarm sounds, 120dB high volume, easily arouse everyone's attention and avoid accident. 3Wide range of applications, suitable for any 12V vehicles, such as car, trucks, RV, boats, etc. 4Builtin publicaddress system, you can use this microphone to talk to others in the car. 5Highquality metal and ABS materials, rugged and durable, corrosionresistant, long service life.Item Type: Car Alarm HornMaterial: ABS+MetalVoltage: 12VPower: 100WCurrent: 5ACaliber: Approx. 140mm/5.5inSound Level: 120dbWorking Temperature: -40-30Suitable for: 12V universalHow to Use:1. Check the battery2. The black wire is connected to the negative pole, and the red wire is connected to the positive pole3. Fix the position with screws4. Ready to use .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Alarm Horn4 x Mounting Accessories