Specifications:
1) Music file format: MP3 / WMA / ASF / WAV
2) Built-in memory: 64M / 128M / 256M / 512M (optional)
3) Display: 128 x 64 Matrix double colors OLED
4) ID3 tag display, Song title and lyric display
5) Multi repeat function: Normal / Random / Folder / Repeat Folder
/ Current one / All / Selected section (A-B) / Intro
6) EQ control: Normal / Classical / Rock / Jazz / Pop / Soft / DBB
7) FM radio: 87.5MHz-108MHz (optional)
8) Frequency response: 20Hz-20KHz
9) Distortion: <0.1%
10) Signal/noise rate: 85dB
11) Interface: USB 2.0
12) Power source: built-in rechargeable lithium battery
13) Output power: 10mW+10mW (320hm)
14) Dimensions: 58 x 30 x 13.3mm (L x W x H)
15) Weight: 32g