PASSIVE NOISE REDUCTION.
The simplest form of receive noise reduction comes from the fact any stereo headset that provides a physical barrier to the ear canals and reduces the level of audio that can be heard.
The amount of noise reduction will depend on may factors for example a headset, such as the Voyager 8200 UC, that covers the ear completely provides better noise reduction compared to one that sits on the ear. Leatherette ear cushions provide a greater acoustic seal to the ear and will provide better noise reduction compared to foam ear cushions.
Headsets with earbuds that sit inside the ear, such as the Voyager 6200 UC, provide a greater isolation from external sounds. An advantage of the Voyager 6200 UC headset is that it can still be used with one ear bud removed allowing users to still hear what’s going on around them.