Rather than ear plugs, these muffs are truly over-ear design which provides more comfort, also no swallow hazards for your kids And these are perfect for air shows, concerts, fireworks, travel, sports events, yard work, etc Notes:Hearing protection muffs could not block all/most noise. But they do reduce noise which might be harmful to your kids. The NRR(Noise Reduction Rating) is 22dB. For Example, The Environment noise level as measured at the air is 92dBA the NRR is 22 Decibles(dB) then the level of noise enter to your ear is approximately equal to 70dbA. These ear defenders do protect your kids' hearing ONE MORE THING: Safety earmuffs which block all/most sound might be dangerous to your kids. If your kids wear that kind of earmuffs, please ensure that they are supervised. Please be extra careful outdoors, or in any situations where the inbaility to hear all sounds might present a safety risks