Description New low-profile E-MaxTM hearing protection combines great circuitry with a low profile earcup that's ideal for shotgun shooters and action shooters. Two microphones in the E-MaxTM amplify sounds below 85 decibels, which amplifies normal communication, range commands and environmental sounds. Above 85 decibels the microphones shut off for a split second to protect the shooter's hearing. Two microphones - one in each cup - give the user true stereo sound and allow the user to identify the directional source of a sound. Firearms, trailers, and some accessories are only available for purchase in stores. Each location follows all BATF and individual state/county/city laws to insure the desired product is legal for sale. Any info provided online is subject to change, please go to your local store for more accurate information.