Features:
1) Multi-decoder player: supports MP3 and WMA formats
2) 5 preset EQ
3) High performance recording in ADPCM format
4) A - B repeat function
5) Extendable to SD / MMC card
6) To delete one or all files with player
7) Powers off automatically
8) Communicates with PC as USB flash disk without battery
9) USB 1.1 interface
10) Single AAA battery