1/ Memory: built-in 512MB-4GB 2/ TFT full color screen, high resolution 176*132 pixel image 3/ Supports Bluetooth function( supply bluetooth headset) 4/ Supports multi audio format MP3,WMA,WAV, etc 5/ Supports AVI movie play function. 6/ Supports JPEG format photo 7/Supports E-Book browse function 8/ Supports game function (Like SmartTetris, Hungry Snake, MoveBox) 9/ Support Multi-language 10/ Support Micro recording and save as WAV format, can snatch repeat or compare repeat 11/ Multi Equalizer Mode: Normal, Pop, Rock ,Classic, Jazz, Bass and Custom EQ. 12/ Multi Playing Mode: No repeat, One ,All, Random All. 13/ Supports music change playing rate function. 14/ Support lyrics synchronization showing simultaneously . 15/ Support auto off function, set in the status of stop to set a time to auto off or if auto off.