AS830 wireless police /car siren, DC12V,400W siren,MP3 playback function Propaganda broadcasts with 2*200W speakers | Police cars, Wireless, 200w
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Multifunction Electronic Outdoor Sirens Bluetooth Siren MP3 Sound (SI100P) - China Electronic Siren, Car Alarm | Made-in-China.com
Musical Horn Siren MP3, a Changing Standard Sounds for a Car Alarm | eBay
The Siren Sound | Four Star Alarm | Solidarity Recordings