With this sound system with BT-technology you can enjoy your favorite music. This compact but complete portable system includes everything you would expect such as amplifier, audio inputs, USB port, micro-SD card slot, and VHF wireless microphone. 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 the internal re-chargeable battery. A perfect system for musicians, entertainers and organizers of events and parties.