ZJebc Highlights 1. Music Player ? Plays MP3 and WMA audio files.Six music modes (including Jazz,Classical and Rock).Easy-to-use Fast Forword and Rewind functions.Multiple play/repeat options including AB repeat. 2. Synchronized lyrics display in English. 3. Read doc,txt,html and pdf documents, in convenient eBook format.Edit documents with included editing software.Bookmarks,Auto Page turn.Variable font size. 4. FM stereo radio ? Digital turning.Stores up to 20 channels.Auto channel search. 5. Read and listen ? supports simultaneous reading eBook and playing MP3/WMA audio or listening to radio. 6. Digital recording ? voice memos,interview,live music ect.Build-in microphone or line-in for easy recording.Recording up to 16 hours. 7. Phone Book function.Easy to search. 8. Large,clear display ? 128*128 pixels,backlight.Task status indicator. 9. Ample storage ? built-in flash memory,from 128MB to 2GB. Enough for thousands of books and music files. 10. Efficient data handling ? USB port,high-speed text transfer, USB flash hard drive. 11. Easy online update of system firmeware. 12. Low power consumption.Auto power-off (adjustable). Battery-level display. Configuration Item configuration Frequency range 20Hz~20kHz Maximum output of earphone 30MW,30Ω signal-to-noise ratio 90dB Audio file types supported MP3,WMA FM frequency range 87~108MHz Antenna Earphone,earphone solenoid Size 68*63*14mm Weight 52g(not including battery) Battery 1*AAA alkaline battery LCD 128*128 pixel resolution, 4 gary levels USB standard USB 1.1 FLASH memory 128MB/256MB/512MB/? Operating systems supported Windows ME/2000/XP Operating temperature 0~40?C(32 ? 104?F) Origin China Size 65 x 60 x 12 Millimeters