100W Muti Function Alarm System Warning Siren with MP3 Function - China 100W Siren, Alarm Siren | Made-in-China.com
AS940 400W Wireless police siren ambulance car alarm with Mp3 function with remote + 2units 200W loudspeakers/twtters | Car alarm, Car electronics, Police siren
Amazon.com: YHAAVALE Bluetooth MP3 Multifunction Police Siren Kit,Metal Round Spaker,100W Emergency Warning PA System for Emergency Vehicle Trucks Cars : Electronics