MP250UB is a 1.5U mini digital mixer amplifier with USB/FM/Bluetooth, with speaker output of 70V/100V & 4-16Ω optional. The product holds 2 AUX inputs and 1 AUX output. Also, it has 2 MIC inputs. The MIC 1 is a 6.3mm jack on the front panel and the MIC 2 is a XLR port on the rear panel. The phantom power is available in MIC 2. In addition, it provides individual volume control for each MIC and AUX, and has bass and treble control. What’s more, it has 2 EMC signal inputs (100V/375mV) and 1 EMC output.