3M Peltor Soundproofing Headband Neon Children's Earmuffs, Style, Green, H510AK-442-GB [Used]

---------------------------------------------------------------------- Sound insulation: 21dB Weight: Approx. 180g Type: Headband These earmuffs can be used by children from about one year old, when their skulls have developed. They protect children's ears from loud noises and other sounds that cannot be tolerated with earplugs. When worn, they reduce sound by 21 decibels (21NRR).