Support reading MP3 songs in TF card and U disk. Support adjustment of treble, bass and master volume. With AUX Audio input, can be connected to the computer, phone or CD. Dual microphone input, adjustable reverb, built-in Bluetooth and FM radio. Support Wireless Microphone Board (not include.) Working Voltage: DC12V-24V or AC 110V-220V Rate Power: 30W Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on Colour:Black&Gold Material:Iron+PCB Package Contents: 1 x Bluetooth Amplifier Board 1 x Remote control 1 x DC cable 1 supply cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.