Mobile sound system with BT-technology. This complete portable system includes everything you would expect such as an amplifier, audio inputs and a USB port, SD card slot, wireless microphones and remote control. You can stream music directly from your mobile device or use the built in MP3 player. This all-in-one system operates via mains or a 12V internal re-chargeable battery. A perfect system for musicians, entertainers and organizers of events and parties.