Support reading and play the MP3 in TF-card and U-disk. Support 6.5mm jack Wired Mic and Wireless Microphone Board Support 220v power supply Small size, high power Bluetooth wireless connection for stable transmission Output power:100-300W Plug Type :EU Plug,it applies to Indonesia, Germany, France, , Italy and so on. Colour:black Material:Metal Size:19.5 x 8.5 x 5.3cm Package Contents: 1 x amplifier board 1 x remote control 1 x speaker cable 1 cable 1 x DC connector 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.