Speaker amplifier board for home audio 80W with TF-card slotMain Features: 1. Support reading MP3 music in U disk and TF small memory card;<br> 2. Built-in Bluetooth receiving function, can receive Bluetooth music from mobile phones;<br> 3. For 12V battery, can be with DC15V charger, (suggest 15V/2A)<br> 4. With AUX IN external audio input function, can be connected to the computer to play;<br> 5. The panel has a microphone, which can be used to sing.Using word power amplifier, rated power 40Wx2(80W)<br> NOTE: (VERY IMPORTANT)<br> 1.In normal use, It needs to be connected to the battery, otherwise the board will not work normally.<br> 2.The 12V battery is not include, and power adapter is not include.<br> size: 22 x 8.8CM<br> Material: plastic<br> colour: black<br> Package Contents:<br> 1 x Bluetooth Amplifier Board<br> 1 x Remote Control<br> Only the above package content, other products are not included.<br> 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.