5th generation mp4 player 1)lowest price 2)portable 3)best quality 4)attractive apperance 5th generation mp4 playertop quality and competitive price rotate button,shake function,Support external Micro SDDisplay2.2 inch TFT screenMemory128MB~16GBPC ConnectionUSB 2.0O/S surportedWindows98/2000/ME/XP/VISTA/MAC OS/LinuxMedia formatPhotoJPG/BMP/GIF/PNG Audio & VideoMP1, MP2, MP3, WMA, WAV,AVI Others ...