12 / 24V Truck Modified Electric Horn Whistle

1. Provides a whistle-like sound with a loud voice
2. The solenoid valve can be used for 12V and 24V, and is suitable for a wide range of vehicle models
3. Made of ABS material, lightweight design, durable
4. With a bracket, easy to install
5. Working voltage: 12-24V
6. Working air pressure: 0.8-0.9mpa
7. Working frequency: 500-800Hz