【Tested and Certified Professional Kids Ear Protection Earmuffs】Our noise cancelling ear muffs is specially designed for kid's hearing protection, thoroughly tested and proven to reach an acoustic attenuation of up to 28 dB, which can effectively reduce noises and protect children’s hearing. Kids ear protection ear muffs for noise reduction are certified and meet ANSI S3.19-1974 and CE EN 352-1.