Dsppa MP60UB is 1.5U designed Mini Digital amplifier with USB/FM and Bluetooth. The Speaker output is 70V/100V and 4-16Ω available, 3 Aux input, Min1 is 6.3mm jack in front panel and Mic2 is XLR in rear panel, Phantom power available for Mic2. Individual volulme control for each Mic and Aux, also provide Bass and Treble control. what’s more, it also has EMC singal input for emgerency situation. This product is thebest bluetooth amp, and also can be calledsmall audio amplifier.