g-mark mr80s professional audio mixer mixing console 8 channels with mp3 player +48v phantom power usb bluetooth reverb for stage g-mark the g-mark mr80s system is a truly user-friendly, yet pleasantly sounded, 8-channel audio mixer. <br> the mk800mp3 is configured with all the essential mixer features.<br> built-in dsp sound effects processor <br> built-in mp3 player supporting a variety of music formats <br> led display for showing the playing status <br> ultra-musical 3-band eq on all channels <br> microphone line inputs <br> peak led indicators on all channels <br> high-accuracy level indicator <br> phantom power switch (+48v) <br> sealed rotary control knobs to resist dust and grime <br> rugged steel chassis <br> multi-voltage power supply for worldwide use<br>