Perfect for highway construction, maintenance work along roadways or other loud projects. For noise levels up to 101dB. NRR 30dB. Hearing Protector Type :Ear Muffs . Noise Reduction Rating :NRR 30dB . For Noise Levels Up To :101dB . Adjustable Fit :Yes .AM/FM Radio :No . Pairs :1 qty . Disposable :No . Battery Required :No . Case Included :No . Optime™ Model Hi Viz Ear Muff. Over-the-head twin cup design. Minimizes resonance. Blocks out maximum high and low frequencies.
