Dimensions 60.8mm*28.8mm*16.8mm(H*W*T) Weight 31g ( (Excl. Battery) LCD Full Graphic with Backlight(128x64) PC Interface USB2.0 Flash Memory Built-in basic Memory (256~1GB according to product) Battery 1.5V (AAA) 1 unit battery Maximum 16 hrs of continuous playback Record Sampling Rate 32KHz/44.1KHz Recording Format WAV MP3/WMA Earphone's Output (L)18mW +(R)18mW(16 Ohm) MP3 Bit Rate 8-320kbps WMA Bit Rate 5-256kbps Output Frequency Band 20Hz-20kHz S/N Ratio >90dB Distortion Rate <0.05% FM Radio FM Receiving Frequency 76MHz - 108MHz FM Reserve Channels 50 Earphone's Output (L)18mW +(R)18mW(16 Ohm) S/N Ratio >60dB Operational Temperature -5 degrees ~ 40 degrees Celsius Sound Effect Use LifeVibes(C.Sound P.Bass P.Studio) Effect