·Audio Format: MP3, WMA
·Build-in Flash Memory, up to 2G
·USB storage disk function
·USB 2.0 high speed
·A-B repeat for learning
·Digital voice recording
·7- equalizer modes & 7 playing modes
·ID3 Tag Display & Lyric Synchronization
·Supported Language: 12 kinds
Power source: 1x DC 1.5V AAA alkaline battery