... WMA, WAV and other audio formats, pure sound; 14. Play a sound: German audio processing technology, seven sound equalizer: natural, rock ... 17. Putting features: stereo speakers, open speaker, ready to achieve a happy sharing; 18. Game features: variety of classic super game ... upgrade; USB 2.0 high-speed transmission; can serve as a mobile hard disk use; high compression ratio, video and audio storage ...