<b><p><br>Features: </b> <br>Brand new and high quality <br>Five different kinds of siren sounds,with microphone functions <br>Easy to Install with screws <br>For use with 12V vehicles only <br>Fit for most of cars, vans, trucks, motorcycles, mopeds <b><p><br>Specification: </b> <br>Color: Black <br>Material: Durable Plastic <br>Power: 100W <br>Voltage: DC12V <br>Speaker cable length: Approx 22cm <br>Microphone cable length: Approx 175cm <b><p><br>Notes: </b> <br>1.The supply voltage should meet the operating voltage, or can not work properly. <br>2. The wiring should be correct, otherwise it does not work. <b><p><br>Package Include: </b> <br>1 Truck Alarm Speaker set