SportEar X-Pro Series Ear Plugs -The closed valve of the X-Pro will protect your hearing by giving you 30 dB of noise reduction with the foam tips (24 dB noise reduction with silicon tips).When you need to hear again, instead of completely removing the ear plugs, simply press the button to open the acoustic valve, allowing sound to pass through naturally.X-Pro Plugs are made from soft, hypoallergenic, medical grade polymer. A low profile design allows you to keep them in place while wearing a mask, helmet, hat, or while using a phone, headphones or supplemental hearing muffs. X-Pro Ear Plugs are washable and reusable to help you avoid the hassle and extra expense of constantly having to replace disposable earplugs. Activate hearing protection with a push of a button30 db Noise Reduction Rating with foam tips24 db Noise Reduction Rating with silicon tipsPress button again to open acoustic valveAllows sound to pass through naturallySoft, hypoallergenic, medical grade polymerLow profile design allows you to keep plugs in placeWashable and reusable