A3-SPK0021 is a wired one-channel 100 watt electronic siren bundle matching with one 100W Octangular speaker. Equiped with two auxiliary light terminals on the main siren box makes it possible to run two-channel 12V Led Lights and is with easy light control on the siren remote. There's a microphone button on the side of the backlight designed remote. You can press and hold the microphone button and speak towards the microphone sound pickup hole to broadcast. And it contains more than 20 different tones by default to fit for different vehicles like Police, Ambulance, Fire, Breacher, Engineer and some other Special Operation Vehicles. This siren will be a good choice for those vehicles and ocassions that have the demands for PA system and/or audio warning.
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