CJB. It's suitable for police, fire, ambulance, traffic, engineer, volunteer, and private vehicle to use as a PA system or audio warning device.This siren and speaker set offers the essential function of different siren tones, wail, yelp, horn, horn-1, horn-2, aux, and two auxiliary switches to control other equipment on the vehicle. Pre-wired unidirection microphone with PTT (push to talk) button overrides the siren during time of usage, and hands-free operation with override from the horn ring. Constructed of heavy duty, corrosion-resistant aluminum housing, the 200 Watt Speaker and Siren Kit offers easy installation, and is made to satisfy your public addressing, equipment operating, and audio warning needs. Wiring Instructions： 1、One red wires connect 12V positive battery power. 2、One black wires connect 12V negative battery power. 3、Two green wires connect one speaker.
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