The ProTac III hearing protector helps protect against hazardous and nuisance noise, while allowing environmental sounds to be reproduced by the electronic circuit, limited to 82 dB. ProTac III helps protect hearing from impulse noise and increases the ability to communicate with nearby colleagues, as well as hear warning signals, approaching vehicles, and sounds in machines and processes. A great value in electronic level-dependent hearing protection, 3M™ PELTOR™ is a leading brand in electronic level-dependent hearing protection for professionals who have an occupational exposure to steady state or impulse noise. The ProTac III helps protect workers' hearing and allows them to listen to important ambient sounds (at a maximum level of 82dB), allows them to communicate with colleagues, hear warning signals and approaching hazards, while protecting their hearing. d borne PPE and full cups that provide a higher NRR. Peltor™ Communication Headset, Hard Hat Attached, Series: ProTac™ III, 23 dB Noise Reduction Rating, Black, 3.5 mm Auxiliary, AA Alkaline Battery