Display screen: 2.8" TFT    
Connect to computer: High speed USB2.0    
Mains Li battery    
Sound recording  
Sample rate 8KHz/16KHz    
Recording format WAV(32K bps/64Kbps)  
The largest output for earphone: (L)5mW+(R)5mW(32Ohm)
MP3 Bit rate: 8K bps -320K bps    
WMA Bit rate: 32K bps - 384K bps    
Frequency respond: 20Hz to 20KHz    
Signal/noise: 85dB    
Degree of Distortion: 0.06%    
Music format: MP3, WMA, WAV    
Work temperature:  - 5 to 40 C