Display typeoled languagesenglish whats in the box1 x user manual 1 x earphone 1 x mp3 player 1 x usb cable memory typeflash memory expansion slotmicro sd card expansion capacity16gb battery typerechargeable li ion battery control typebutton external hard drive connection typeusb 20 compatible operating systemswindows0307vista headphones jack35mm stereo jack microphonebuilt in supported audio formatmp3 item typemp3