Police car siren, vehicle siren, electronic siren with MP3, Used for police car, cop car, fire fighting, ambulance EMS, Wrecker, project car, sprinkler, patrol car, emergency vehicle ect. Features: Power: 200W Operating Voltage: DC12V Remote control Charging voltage: 5V Remote control distance: 10M Insert U disk, Play MP3 20 kinds of siren sound can be set Two-way light control switch Steering Wheel with siren speaker function Tones: Horn, Yelp, HILO, HI-LO, Wail-1, Wail-2, Tool, High-speed PHSR, 6 seconds bass Light control: 2-ways Amplifier size: 165mm*135mm*55mm; Controller size: 88 mm*52mm*16mm