... color:black,blue,red,green,silver capacity:4GB Music stick MP3 Player with screen,music stick mp3System RequirementsHardwareIBM PC or compatible PC, Notebook ... ~20KHZ Physical characteristicsBattery Typechargeable batteryStorage TemperatureSamsung Flash:-20 ~ +55 ; Other Flash:-0 ~ +55Operating TemperatureSamsung Flash:-10 ~ +55; Other Flash:-0 ~ +55Operation Relative Humidity*20 ...