MULTIFUNCTION: This ear defender is designed with 2 layers of professional noise reduction foam, high sealing solid ABS ear cup and the unique double-shell, it can prevent hearing damage, also perfect for kids on the autism spectrum for blocking out crowdsand other triggers. Great for reducing noise in all environments. Ideal for shopping centres, sports events, concerts, airports or any other troublesome noise. SOFT AND COMFORT: This hearing protection earmuffs can bring lightweight and extremely comfortable experience for your child. The padded headband and soft ear cushions can bring your child comfy wearing experience while ensuring snug fit. ONE SIZE FITS MOST KIDS AND BABY: 360rotatable ear cups, can be freely rotated to fit snugly around your ears, you can adjust it to suit your face shape and find the perfect fit, more comfortable to wear. Expanded size: 5x3.5x7in(12.5x9x18cm) foldedsize: 3.9x3.5x4.3in(10x9x11cm). Its recommended for kids aged 1-14 years old. COMPACT andamp PORTABLE: The kids ear defender is foldable for easy carrying when participating in outdoor recreational activities or traveling. It can be easily placed into a backpack or carry on bag for exceptionally convenient hearing protection. Whennot in use, it can be folded, which is convenient for storage and carrying. WIDE APPLICATION: The kids hearing protectors are suitable for all kinds of noisy activities and places. Included yard work, sporting events, live concerts, firework shows, theaters, parades, airplane rides, car races, shooting sports, monster truck shows,heavy city traffic, ect.