This disc case contains Ion control material and Bioenergy material
in the ratio of 7:3 and neutralizes the adverse effects of an
electromagnetic wave, static electricity, the magnetic field.
Just by installing aVynil record in this case over for 30 seconds,
there is a certain improvement in dynamic range, Three-dimensional
It is more effective to install a disc for more time(over one hour)
in spatial reproduction, transparency, well-balanced frequency range.
This effect will bear about for 48 hours out of the case and a best
recommendation is to maintain a disc in this case normally.