Now with Bluetooth 5.0 technology and an even faster reaction time of .5 milliseconds, Impact Sports intelligent electronic ear protection is always actively listening. Employing integrated omni-directional microphones that amplify ambient sounds, youll hear only the most important commands on the range and crucial environmental sounds when hunting. When loud, harmful sounds, like firearm discharges, exceed 82dB, the amplification automatically stops, keeping your hearing protected.