X-Micro Tech. EVA 310 User Manual

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9.  Technical specifications  
Bit rate 
32~320Kbps(MP3)32-192Kbps(WMA) 
SNR 
>90db 
Dynamic range 
>80(1KHZ) 
Distortion 
<0.05% (REFERENCE  LEVEL:0dB(MP3) 
1 mW, 4mW -52dB/-62dB(VOICE, REFERENCE FREQUENCY:1KHZ) 
Output 
5mW*2 
Condition of storage 
Humidity<90%, normal temperature 
USB interface 
USB2.0High speed 
Memory 
128MB/256MB/512MB/1GB/2GB 
Size 
82*27*20mm 
Working condition 
Humidity <85%, -10~40℃ 
Battery life 
>7h, (display on) 
Weight 
<26g