1) 1.Polarized lenses (anti-scratch) & TR 90 frame

2.Available flash memory size: 1GB,2GB.4GB 

3.Compatible format: MP3, WMA, ADPCM

4.Standard USB port: USB 2.0 (full speed)

5.Bluetooth's effective deistance is ten meters.

6.Play function: play in order, pause, resume playing etc.

7.Delete function: delete current or all songs or recordings

8.Integrated Microphone supporting ADPCM recording.

9.Continuous playing time: 8 hours

10. Recharging time: 2 hours

11. 230mAh/3.7V macromolecule polymer li-ion recharging battery

12. Automatically detected battery voltage and capacity

13. Battery Consumption Saving function: a- Automatic power off if no button pushed in 2 minutes under pause status b- Automatic power off in 2 minutes when all tracks played

14. Voice output power: 5mW + 5mW

15. S/N Ratio: 80dB

16. Working temperature: -5 ~ +50Celsius

17. Earphone Output: 5mW + 5mW

18. Frequency response: 20Hz ~20kHz

19. Sampling frequency of voice recording: 8KHz

20. Compression level: 32Kbps~320Kbps

21. Share same USB port for Download, Upload and Recharge

22. CE & FCC certificate Packing: Inner packing: 1pc/gift box

     Outer packing: 50pcs/ctn

     Carton dimensions: 44 x 39 x 55cm

     G.W.: 15.5kg