Features: 1) Support MP3 and WMA 2) Support built-in FM radio (optional, FM recording) 3) With multiple music models: Normal, Pop, Rock, Jazz, Bass and Classic 4) As USB flash drive with built-in 32MB-512MB flash memory 5) Built-in mini USB full speed 2.0 interface to connect PCV 6) Firmware updateable via USB interface 7) Voice recording time 3-18hrs (128MB) 8) Record sampling frequency (16KHz, 32KHz,48KHz) 9) Format of music: MP3, WMA 10) Format of record: MPEG I LAYER III, WMA 11) High resolution LCD screen size 128 x 32 dot Matrix 12) 7 colors backlighting / blue color (optional) 13) Signal noise ratio >90dB Earphone output power 5MW+5MW 14) Output frequency range 20Hz-20KHz 15) Support compression rate: 32KbPS~256KbPS 16) Sustained playing time for approximately 8 hours with an AAA battery 17) Display lyric / Dynamic sliding ID3 in Multi-Languages (Subject to Request) 18) User changeable Power-on Power-off Picture 19) Powered by USB port automatically 20) Weight: 35g excluding battery 21) Dimensions (L x W x H): 80 x 20 x 15mm 22) Selected content repeat function (A-B) Mode 23) The design, specification and measurement are for reference only