Specifications:
1. Memory: Capacity 1GB-4GB
2. Support music file such as MP3, WMA, ASF
3. Correspondence OS: Windows 2000/XP/Vista
4. Interface: USB2.0
5. Channels: Stereo
6. Music file: MP3, WMA, ASF
7. Battery: Bulit-in rechargeable Li-ion battery
8. Languages of the quick user guide: English, Korean, Chinese
9. Size: 44.0 x 39.5 x 30 mm
10. Weight Approximately: 18g (battery included)