1.UFD (USB Flash Drive) :
 Memory size:512M,1G,2G;
 USB 2.0;Don't need any drive;
   Plug & play;
2.Audio player:
     Audio format: MP3, WMA;
     Equalizer: Normal, Jazz, Pop, Classic, Rock;
3.General Features:
    Playing time: 8hours;
Firmware upgradeable through USB
Ambient Temperature:
                    Operating: +10 ~ +50C
                    Non-operating: -20 ~ +60C
Humidity:
         Operating: 20% ~ 80% RH
         Non-operating: 20% ~ 80% RH
Dimensions: 60*20*20 mm