3M Peltor TacticalPro Communications Headset MT15H7F SV, Hearing Protection, Ear Protection, NRR 26 dB Excellent for heavy equipment operators, airport workers, shooting and industrial workers Amplifies low-level sounds while suppressing dangerous impulse noises Protects hearing with a Noise Reduction Rating of 26 dB Offers clear, ambient sound and voice recognition in noisy environments Ability to be used with portable radios Uses deep earcup design and soft ear cushions for all-day comfort