MSA Sordin Supreme PRO - The US subject field Earwear specific edition - negroid headband and negroid cups with gel seals already fitted. Sordin Supreme Pro X is to conform to global mil-specifications and different uttermost conditions. These headsets first-class digital healthy reproduction. With the msa supreme pro x you can now with your friends when out shot, even when others are shot around you. The physics design it realizable to combine very rock-bottom underway consumption with great performance and instead of cutting off limit sounds it compresses them down to al level of 82 db -LRB- A -RRB-. The MSA Sordin Pro X are hearing protectors that reproduce a natural and earthy healthy. You should consummate locational hearing without any distressing noise. brilliant healthy prize and great amplification will actually you hear better when wearing our hearing protection without letting any vesicatory noise in. All moving components are made of steel and circuit boards are and therefore water secure. Two disjoint splash proof to reproduce the close healthy within the headset aux input for connection to outer radios digital electronics compress healthy without chopping the inbound the sounds waterproofed battery compartment and microphones contiguous just slight design with neckband to allow more comfort when using helmets all electronics functions incorporated within a slight 3-button key-pad over 600 hours of battery life from 2xAAA batteries -LRB- supplied -RRB- battery save function and rock-bottom battery warning system great inactive attenuation. : 5 years on the physics EN352-1 / EN 352-4 / EN352-6 : SNR = 25 dB, H = 28 dB, M = 21 dB, L = 16 dBANSI S3.19-1974 : NRR = 18 dB .