Features:
Support MP3 format
USB data
Built-in 64/128/256/512M MB
Mini size
Aluminum housing
Build in rechargeable battery

Specification:
Format support MP3 format
PC interface USB (universal serial bus) v1.1
Operating system windows 98/98se/me/2000/XP or above and Mac.
Storage capacity : 64mb/128mb/256mb
Bit rate : 32~256kbbs
Data reading speed : 800kb/sec
Data writing speed : 500kb/sec
Power source built-in rechargeable li-battery
Playback time 5 hours
Dimension 50 x 50 x10 mm
120 x 25 x 10 mm (256mb~1gb)
Weight : 30g
Certifications fcc, CE