Multi-purpose: reduced noise level, protecting hearing sense, amplifying tone, and keeping off external loud noise. Serving as a standard earmuff when not activated to reduce noise level (NRR Value = 23dB).
Receiving voice at frequency 400~4000 Hz, making voice clearer.
All voices interrupted when exceeding 82dB to ensure use safety in noisy environment for longer hours.
Ideal in shooting, hunting, industrial training and many other applications.
Easy cell replacement (1.5V x 2) simply by opening up the cell cabinet.
Battery sold separately.