Specifications:
1) Size: 58 x 36 x 12.mm
2) Weight: 26(without battery)
3) USB: standard USB 2.0 port
4) FM radio: 87.5-108.5MHz
5) SNR: 90dB
6) Frequency response range: 20Hz-20kHz
7) Music sampling rate: 32-210kbps
8) Storage Temp: -20~55oC
9) Operating Temp: -10~55oC
10) Operating relative humidity: 20-90% (40oC)
11) Storage relative humidity: 2-93% (40oC)

Features:
1) Built in 128/256/512/1 gb flash memory
2) Music file format: MP3, WMA
3) High quality digital voice recording
4) A-b repeat
5) Use as flash disk/extra drive
6) Games
7) 7 equalizer modes: jazz, classical, rock, pop, normal, soft , DBB
8)14-languages display and FM built
9) 2C OLED display
10) ID 3 function

Inner packing:
Dimensions: 92.2 x 34.1 x 12.5mm
Weight: 36g

Outer packing:
Dimensions: 176 x 137 x 55mm
Weight: 250g