Digital Amplifier Board 120W Microphone Guitar Bluetooth Speaker Home Theater. 220V or 12V battery can be used directly. The multi-function power amplifier board can be equipped with single push.8 inch, 10 inch, 12 inch, rod speakers, stage audio karaoke high power 120 watts(4 Ohms) outdoor sound, wireless microphone interface. Karaoke reverb, delay function, out-of-band audio input, audio output, with Bluetooth, with guitar input, with microphone priority, with screen display and other functions. Can play USB/SD Card, Bluetooth/Aux connection. The external input port settings are: AUX audio input, guitar input X1, microphone input X2. Knob operation settings: Music volume, treble, bass control; Mic volume, treble, bass, delay and echo control; Guitar volume control. Speaker impedance: 4-8 ohms speakers. Power supply: switching power supply wide voltage AC220V/50-60Hz circuit is equipped with battery charging function, built-in can be equipped with batteries above 12V/4.5AH, and external can be connected to batteries above 12V/4.5AH. This item is in the category "Consumer Electronics\TV, Video & Home Audio\TV, Video & Audio Parts\Amplifier Parts & Components". The seller is "myincast" and is located in this country: CN. This item can be shipped worldwide.