Nonoise Work - New generation earplugs - ceramic filter</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>For use in loud factories or in construction with heavy machinery</li><li>Conversations still possible， the voice frequency is still heard very well</li><li>No muffled sound but dampened (like adjusting the volume)</li><li>Comfortable silicone-free， hypoallergenic thermoplastic</li><li>Including aluminum tube to keep your earplugs safe in your pocket</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/415fYVwrxCL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41rxF7cOwDL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41nuom9gcoL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/417BiimYBAL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41KPLCE7sKL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/411lD72nr2L.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41TnMqkNYpL.jpg' noproxy></br>