* Mini HIFI BT power amplifier supports BT wireless connection.* With LCD display, backlight design.* Left and right channel output, rated power 50W + 50W.* Can read U disk and SD card, plug and play.* Two microphone input jacks, with reverb and microphone volume adjustment buttons, home or car karaoke system.* Supports DC12V / AC220V power supply, suitable for home and car use.