Features 1、50W amplifier, 120dB alarm sound, effectively attract the attention of others, with good warning effect. 2、Suitable for various cars and vehicles with 12V DC power supply, which has a wide range of applications. 3、High‑quality metal and ABS materials, rugged and durable, corrosion‑resistant, long service life. 4、Comes with mounting accessories, easy and fast to install, no need of complicated operations. 5、Sophisticated production, provides excellent quality, very stable performance and high work efficiency Specification Item Type: Car Alarm Horn Material: ABS+Metal Power: 50W Current: 1.8A Horn Diameter: Approx. 100mm/3.9in Sound Level: 115-120 (db) Working Temperature: -40-60℃ 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 position with screws 4. Ready to use Package List 1 x Alarm Horn 4 x Mounting Accessories