cylinder &portable mini MP3 speaker with big sound 1.Portable, high quality 2.Strong ... shell, fashion, beautiful, eleganceSupports MP3, WMA format music files, double decodingsupport connect external Music playersBuilt-in FM FM radio (optional)Support Micro SD ... five-in-one interface, headset, charging, music input, the capitalMaterial transmission, FM antenna realized in a holeBuilt-in high capacity ...