A professional 12" 500W Mobile Sound System featuring 2 VHF wireless microphones operating on different frequencies, remote control and integrated USB and SD slots for MP3 playing. This all in one system operates via mains or a 12V internal re-chargeable battery, powering a 12" main driver and a 1" HF driver. On the back there are 2 inputs and an echo effect for wired microphones, AUX line input, MP3 control unit, 5 controls for tonal adjustments etc. Due to this exciting system, premises and areas can be filled with an ear pleasing sound.