★ 7 SIREN SOUNDS: The car siren speaker can offer 7 loud and clear sounds, includes hooter, fire alarm, ambulance, traffic, police, etc. Please don’t use siren when emergency situation happened.
★ WIRELESS REMOTE CONTROLLER: Easy to operate, control the horn with the button. Button A: Tone 1；Button B: Tone 2, press to stop the siren；Button C: Tone 3；Button D: 4 Different Tones, press to change tone.
★ INSTRUCTIONS: Power siren with 12V or car battery. The supply voltage should meet the operating voltage and please make sure the cable connection is correct, or it will not work properly.
★ LOUD AND CLEAR: The sound car siren is handy but loud and clear for its size. Please Not to be used as a replacement for professional equipment siren.