... color:black,blue,red,green,silver capacity:4GB Music stick MP3 Player with screen,music stick mp3System RequirementsHardwareIBM PC or compatible PC ... /SWrite speedSLC:4.0~5.0MB/S MLC: 1.5~2.0MB/SAudio formatMP3,WMABit RateMP3(8kbps~ 448kbps) / WMA(32kbps ~ 384kbps ... ,red,green,silverPackageBlister package, color boxCertificationCE,FCC,ROHS Music stick MP3 Player