StyleTypeMP3,ColorBlue,Silver,Black,AudioAudio FormatsMP3,StorageMemory TypeFlash Memory,Expansion SlotMicro SD Card,Expansion Capacity16GB,DisplayDisplay TypeOLED,BatteryBattery TypeRechargeable Li-ion Battery,InterfaceControl TypeButton,External Hard Drive Connection TypeUSB 2.0,Compatible Operating SystemsWindows03/07/vista,Headphones Jack3.5mm ...