MP250UB is Mini Digital Mixer Amplifier with USB/FM and Bluetooth.The Speaker output is 70V/100V and 4-16Ω available,Individual volume control for each Mic and Aux, also provide Bass and Treble control.

Features
● Built-in Bluetooth, radio and USB function.
● 2 MIC IN, 2 EMC IN, 2 LINE IN, 1 LINE OUT.
● 100V or 70V constant voltage output, 4Ω~16 Ω constant resistance output.
● Support IR remote control.
● With priority function, priority is EMC/MIC1>AUX1/AUX2/MIC2.
● With master volume control, and individual volume control of MIC & LINE, as well as treble and bass volume control.