Reduced noise level, protecting hearing sense, amplifying tone and keeping off external loud noise.
Receiving voice at 400 - 4000 Hz making voice clearer.
All voice interrupted when exceeding 82dB in order to protect user.
Ideal in shooting, hunting , industrial training.
Easy cell replacement 1.5V X 2, CE and ANSI standard, NRR: 28dB, SNR:31dB.