Earmor Bluetooth Active Hearing Protection & Enhancement Ear Plugs Tactical Black M20T Pro-BK

Earmor Bluetooth Active Hearing Protection & Enhancement Ear Plugs Tactical Black M20T Pro-BK. The M20T Pro electronic ear buds can heighten hearing when sound levels are safe. This feature allows you to hear conversations foot steps or other sounds that you would normally not be able to pick up by the naked human ear. When sound reaches an unsafe level(82dB) the internal microphones shutoff leaving you with a noise reduction rating of 30dB(NRR30). The high NRR is possible by the unique design o