The Sordin Supreme MIL AUX SFA , based on the new Sordin Flexible Attenuation (SFA ) concept, is developed with the user and ever-changing conditions in mind. At SNR 32 dB, it safely protects your hearing even in extreme noise environments, while providing instant interchangeability for a slimmer cup design - enabling optimization for different operating environments or helmet compatibility needs. Their mission is your successful mission! FeaturesExtra attenuation foam and increased cup volume (with distance ring) for higher passive attenuationEasy to use push buttons operate the electronic functionsLevel dependent function that allows the user to hear ambient sound, such as warning signals, moving vehicles and important information and still be protected from hazardous noiseAvailable with black, green or sand cupsThe electronic circuits are encapsulated in multiple layers of lacquer and polymer for increased robustnessAmplification of low soundsVery natural sound reproduction th...