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.) Specification: Name: Amplifier Board Rate Power: 30W Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the , the Philippines,Taiwan and so on. voltage:AC110-220V Colour: Material:Iron+PCB The actual product may have slight color difference or difference, which not affect the use DC cable and speaker cable colors are random, don't accept the specified color Package Contents: 1 * Bluetooth Amplifier Board 1 * Remote control 1 * Speaker cable 1 * DC Power supply cable 1 * Power 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.