The range 0 Hz - 100 Hz this range of the sound and vibrations, is shielded sailling floor on spring, ferrite bar, sirkle Gelimgolica, active protection.

• 更好地屏蔽0--100赫兹频率范围和100千兆赫以上，大部分可以通过法拉第箱来屏蔽；