... so on capacity:1G,2GB,4GB,8GB clip MP3,Clip MP3 player,clip music player System RequirementsHardwareIBM PC or compatible PC, Notebook or ... ~7HoursLCD DisplayN/ASNR>85dBFrequency Response Range20HZ~20KHZ Physical characteristicsBattery TypeRechargeable lithium-ion polymer batteryStorage Temp*-20 ~ +55Ambient Temp*-10 ~ + ... onPackageBlister package/gift boxCertificationCE,FCC,ROHS mini SD card MP3 PLAYER