... Inch Speaker x2/4Ω 5.SNR: ≥75db6. Built-in:SD Card,USB Decode,FM Radio function7.Power Supply: ~5V ... 8.Li-ion:3.7V 800mA (can choose Built-in Battery or External Battery(BL-5C) 9.Material:Wooden, ... read memory card automatic.4.Insert the audio cable in LINE IN port, can connect to the cellphone,MP3 MP4,Computer ... full color light C. Accessories:1.One USB Power Line,2.One 2.5mm Audio Connector,3.one Remote ...