Mini SD card MP3 Audio format:MP3,WMA,WAV size:44x29.5x13.2mm color:green/red/silver/ ... black and so on capacity:1G,2GB,4GB,8GB clip MP3,Clip MP3 player,clip music player System RequirementsHardwareIBM PC or compatible ... .0 above Function characteristicsUSB InterfaceUSB2.0 high speedCapacity128MB ,256M,512M,1GB,2GB,4GB,8G(Optional)Storage DeviceRemovable Storage DeviceEQ ModeN/APlay ...