The MP3 Micro Sport is a MP3 player that is small enough to in your ear like a wireless headset. It measures only 16mm x 25mm x 22mm at 8grams. You get a stereo by connecting another earphone to the port. The MP3 Micro Sport is available in 2GB and 4GB, at ¥4,980 for the 2GB, and add in ¥2,000 for the 4GB. More pictures after the break.