This Dsppa MP120UB is a 1.5U-designed mini digital amplifier that comes with USB, FM, and Bluetooth. It has speaker outputs of 70V/100V and 4-16Ω available, and 3 Aux inputs. 6.3mm jack on front panel, XLR on the rear panel. Comes with separate volume controls for each mic and aux. Bass and treble can also be controlled. Also, there is an EMC signal input system in case of emergency.