From the review sample page:
The HSA-E 212 is specially designed as a higher upgrade earphone from your current earphone. It can produce full bodied sounds, with very dense sound texture. The E 212's detailed music information can fill every space of any sound stage. Plus the high resolution of the sound explains every nuance of your music. The sound stage image of the E 212 is the same as if you were in a recording studio. With the HSA-E 212; you are easily involved in the world of music.