<p><br/></p><p>Product name: 3M earplugs</p><p>Model: 304-4004 (with cord)</p><p>Features: Washable, reusable</p><p>Noise Reduction Value: NRR: 25dB, SNR: 32dB</p><p>Usage Scenario: Study, sleep, swimming, industry, noise environment use</p><p>Size: diameter 1.5cm, height 2.8cm, length 60cm (manual measurement error, please understand)</p><p><br/></p><p>Specification:</p><p>1 pair with case (1 pair of earplugs + 1 storage box)</p><p>3 pair with case (3 pairs of earplugs + 1 storage box)</p><p>5 pair with case (5 pairs of earbuds + 1 storage box)</p><p><br/></p><p>Note: 3M reminds you, when cleaning earplugs, please do not excessive rubbing, to avoid damage to the earplugs, please according to the frequency of wear and the appearance of the earplugs whether there is damage to the earplugs, real-time replacement of new earplugs!</p><p>Note: The product is molded, there may be excess material at the hanging mold, it does not affect the use, if you don&#x27;t like it you can cut it off with scissors. The earplug rope is embedded, can not be pulled strongly, easy to fall out, if you accidentally pull out the rope, you can with the household glue directly back to the plug, wait for the glue firmly can continue to use. If you don&#x27;t need the earplug rope, you can pull it out directly.</p><p><br/></p>