Caldwell Adjustable Earmuffs
The dual microphones in the E-Max amplify sounds below 85 decibels, which amplifies normal communications, range commands, and ambient noise. Above 85 decibels, the microphones turn off to protect the shooter's hearing. The width of the earcup is 1.75 inches and two AAA batteries are required but not included. With a stereo microphone in each shell, the user can locate sounds from any direction.