3M Peltor Optime 95 Cap-Mount Earmuffs， Hearing Conservation H6P3E/V</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Universal mounting attachment fits most hard hats</li><li>Stainless steel construction resists bending and warping.</li><li>Earcup pivot points tilt for optimum comfort and efficiency.</li><li>Ultra light with liquid/foam filled earmuff cushions.</li><li>Noise Reduction Rating (NRR)*: 21 dB. CSA Class B. *The NRR may overestimate the hearing protection provided during typical use. 3M recommends reducing the NRR by 50% for estimating the amount of noise reduction provided. 3M is Leading the Advancement of Hearing Conservation™.</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/41oQAdOn6sL.jpg' noproxy></br>