MP 11 is a single-zone audio player. It’s also play audio from FM radio, SD cards and USB drives, supports wireless audio streaming from mobile devices. With volume and tone controls and selectable inputs. Paging microphone can be used with microphone gain and tone control, phantom power, and signal priority. External audio sources can be connected using three stereo line inputs or a 3.5 mm TRS AUX input on the front panel.