... 3.Rechargeable Li Battery 4.Plug and play. MP3,Portable MP3 Player Support mp3/WMA Rechargeable Li Battery Long time playback CE,ROHS ... audio standards: AAC, AIFF, Audible, MP3, MP3 VBR, WAV. Additional Features: built-In digital camera, FM stereo tuner, video recorder. Powered by internel ...