1.Support MP3/WMA/WAV etc. audio format 2.Built-in microphone for high-quality voice recording 3.MP3 programmable function (MP3 recording directly) 4.Built-in USB2.0 with full speed downloading 5.With HDD function supporting all files?memory and transfer 6.Dot matrix LCD, supporting lyrics synchronized display 7.Bulit-in FM radio and Frequency range from 87.5MHZ-108MHZ 8.Six EQ modes: Natural music, Rock, Jazz, Classical music, Pop music , and Bass 9.Five playing modes: Normal, Sigle Circulation, All Circulation, Random, Browse playing etc 10.Running test function 11.Pulse test function 12.Electronic plate function (compass)