A member of iMP3 forum had visited an OEM manufacturer and posted some body cases of MPIO MP3 players. The right most on picture above is the case of an unknown MPIO model. It is similar to FY800 but not as slim as it is and it doesn’t come with SD card expansion slot. It might be probably a downgrade version of FY800, similar relationship like FY600 and FY500.

[ via iMP3 Forum ]