1. Brand new and high quality
2. 60W five tone emergency sounds air horn is manufactured and sold exclusively by comfort wheels  
3. The horn offers 5 great sounds; a traditional Hooter, a ringing fire alarm, a wailing ambulance, a blaring police siren and the distinct traffic sound
4. Installation instruction: connect the RED wire to a 12v source, and then run the black wire to a ground or negative battery post. Note: with very large vehicles the installer may need to purchase additional wiring to elongate the wires
5. The sound compounded by the digital programs and measureup to the requirements of police and fire control department