... Mp3 WMA music• Flash Built-in 8GB (1GB to 8GB Optional)• Support TF Card • Line-in function ... like PC, Mp3, Mp4 player, etc. • FM function included• Built-in lithium battery, working 10 ... Co., Ltd is a professional manufacturer in Shenzhen, China. Our ... FM Transmitters, Mini MP3 Speakers, Digital Photo Frames, MP3/MP4 Players, etc. * 10pcs and ... MP3 Speaker with built-in FM, 8GB built-in flash memory