Product information: 9 warning sounds, convenient to use. Powerful sound. Comes with a hook, saves space. Name: Speaker Host with microphone Product type: multi-tone Claxon horns Voltage: 12 V Sound level: 150 dB Impedance: 8 Power: 200 W Current: 20 A Use: universal for cars Type: alarm sound Alarm diameter: 140 mm Wiring of the 9-series siren: The red main wire is connected to the positive electrode of the battery, the black wire is connected to the negative pole, and the other two green wires are connected to the horn. The white and yellow can be connected to each other with two flashing lights. Description: With sufficient power of 200 W and powerful speakers with a rating of more than 150 dB, you can get high-quality sound that can be heard from afar. It includes 9 warning sounds suitable for police, ambulance, fire department, engineers, private vehicles etc. 200 watt amplifier. 9 sounds. 2 auxiliary switches. Hands-free operation, bypass of the horn. Pre-wired talk button microphone. Heavy.