KwikSafety Sound Ear Muffs for Noise Cancelling, Hardhat Detachment Accessory, Color Yellow Great for blocking noise caused by large crowds, airports, sporting events, garden and household tools, or any other troublesome noise. Awesome for Uninterrupted Focus Shooting, Mowing, Drilling, Construction Low profile clam design keeps the muffs secure on little ears and offers a stylish look. Strong high quality parts make them sturdy and robust. Certified. ANSI S3.19 & CE EN521 Noise Cancelling Earmuffs Lightweight and comfortable to suit little ones. Padded ear cushions offer superior comfort and a snug fit Foldable for easy storage and portability. Adjustable, so they fit children as young as six months and as old as grandpa.