Description <br> 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 3.7V lithium battery, can be charged with DC5V/1-2A charger <br> 4. With AUX IN external audio input function, can be connected to the computer to play <br> 5. The panel has a wired jack, which can be used to sing or sing <br> <br> Using word power amplifier, rated power 15W, peak 30W <br> The product is mono channel. <br> NOTE: It must connect a 3.7V lithium battery to open.---this is very important for power on. <br> Type: Amplifier Board <br> color:Black <br> Material:Metal <br> size:194 x 85 x 26mm <br> <br> Package Contents: <br> 1 x 3.7V Bluetooth Amplifier board(Without power) <br> 1 x Remote Control(with battery) <br> 1 x SPeaker Wires <br> 1 x radio antenna <br> <br> Only the above package content, other products are not included. <br> Note: Light shooting 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. <br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store