1. Fully compliant with USB 1.1 Full speed specifications
2. Support USB "Mass Storage Class Device"
3. 12 Mbit/second signaling rate
4. Upstream compatible with USB 2.0 host mainboard and device
5. Follow FAT 12/16 data storage format
6. Write protection function
7. Driver free for Windows XP, ME, 2000 and MAC 9.0 and above
8. Durable solid state storage data retention for at least 10 years
9. MP3 (MPEG I layer III) digital music function
10. Earphone jack 2.5 mm
11. Maximum earphone jack output up to 100 mW
12. Maximum output voltage swing 1.2 Vrms
13. Excellent sound quality , S/N ratio 96 dB, dynamic range 96 dB
14. User friendly
15. Size 91.2 mm X 30.4 mm X 26.3 mm
16 . Weight 30 gram (excluding battery)
17. Low power consumption , single AAA battery can play up to 3 hours.
18. Smart battery charger function through USB port
19. Auto detect battery type, auto stop charging at fully charged condition