All Banz earmuffs are sound-dampening earmuffs, which means your child can still hear you – it wouldn’t be safe, otherwise! The earmuffs do their job by reducing loud noise to a safe level.The headband on Banz Hear No Blare Earmuffs is specially designed to put minimal pressure over a soft baby head and can be adjusted to fit comfortably and exactly for each wear.The wide, foam-filled cushions ensure that the set doesn’t squeeze and that there is plenty of space for the ears inside the shells. As each set weighs in at just 142 grams, little ones find Banz Mini Earmuffs comfy and easy to wear.Banz Mini Earmuffs meet the following international standards:AS/NZS 1270:2002 – the Australian and New Zealand safety standard for earmuffsANSI S3.19 – S3.19 is the standard introduced by the ANSI to regulate hearing protection devices.EN352-1: 1993 – This is the European Standard for hearing protection and hearing protectors.Specifications Weight: 142 grams Single Noise Ratio (SNR): 26 dB (decibels) Noise Reduction Rating (NRR): 31 dB Mean Attenuation @ 500 Hz (hertz): 25.7dB Mean Attentuation @ 1000Hz: 35.2dB