A very flexible portable PA system, suitable for many applications. The 15" driver and powerful amplifier will give adequate power for events and presentations. The internal rechargeable battery allows for complete portability which is assisted by the built in-wheels and pull out handle! Two radio microphones are included in the set(PP3 batterys sold separately), you can also add two wired microphones or guitar if needed. An internal MP3 player provides music via SD card, USB stick or connect a Bluetooth enabled device. You can connect an external player via stereo RCA line inputs. The small internal mixer allows you to mix music with the microphones, so you have a complete system in one box. Supplied with adjustable height stand, and carry cases.