Silicone-free, ultra soft and light-weight material Imported Concept:Noise cancelling headphones for kids don't have to be "Ugly", they could be cute and cool. Fit toddlers to young teens. It offers unparalleled comfort, surpassing all others in this regard Upgraded Products:Our kids headphones DON’T have any metal parts which might potentially hurt your children.Besides,rather than ear plugs,these ear muffs are truly over-ear design which provides more comfort,also no swallow hazards for your kids Effective Hearing Protection:Design for children who have sensory issues and need extra hearing protection. And these are perfect for air shows,monster jam, concerts, fireworks, travel, sports events, etc Cautions: ZOHAN EM030 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 25dB. For Example, The environment noise level as measured at the air is 95dBA; the NRR is 25 Decibles(dB); then the level of noise enter to your ear is approximately equal to 70dbA. These headphones 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 ZOHAN EM030 [Upgraded] Kids Ear Protection Safety Ear Muffs (Symbol Music)