Review on Powerful Car Security Alarm Siren Horn - uxcell DC 12V 15W in Sleek Black Design by Shane Grosland

The product name says 20W. The product description states 15 watts. Unfortunately, "15 W" came. But the sound like a siren was good. Sirens connected to Viper 5806V 24 pin harness Brown/Black output "Beep (-)" via relay. Changed "function number 9 beep time” to 50ms with beat recording improves sound quality. I value high quality products at a fair price. I want to expect longevity! Other notes: Although it is connected to the Viper's standard siren output line, the power is insufficient and the on/off tone is only faintly audible. If you need a loud siren, choose a larger siren.