Features: 1.Practical emergency alarm kit, including 1 x speaker, 1 x PA mic, 1 pack of installation kit. 2.50W siren, 115db high volume, ensures a loud and audible sound even when you are in a distant place. 3.It has 7 distinctive sounds that is really helpful in your activities such as fire alarm, wailing ambulance, etc. 4.Built?in public?address system, you can use this microphone to talk to others in the car, convenient for using. 5.Wide applications, suitable for any 12V vehicles, such as car, trucks, RV, boats, etc. With mounting accessories, easy to install. Specification: Item Type: Car Alarm Horn_x000D_ Material: ABS + Metal_x000D_ Voltage: 12V_x000D_ Power: 50W_x000D_ Current: 3A_x000D_ Horn Diameter: Approx. 120mm/4.7in_x000D_ Sound Level: 115db_x000D_ Working Temperature: -40-60_x000D_ Suitable for: 12V universal_x000D_ How to Use:_x000D_ 1. Check the battery_x000D_ 2. The black wire is connected to the negative pole, and the red wire is connected to the positive pole_x000D_ 3. Fix the mounting position with screws_x000D_ 4. Ready to use PackageList: 1 x Alarm Horn 4 x Mounting Accessories Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.