Flex-Phones Indestructible Foam Headphones\n\nHamiltonBuhl Flex-Phones are nearly indestructible, made from a single piece of EVA foam. EVA foam is safe, non-toxic, BPA-free, soft and an extremely flexible material.\n\nBest of 2015 Scholastic Teacher's Pick\n\nFlex-Phones are certified for all major USA and international child safety testing standards. We are extremely proud that they have been awarded the Scholastic Teacher's Pick as \n"The Best of 2015".\n\nRecommended for children ages 3 and up, Flex-Phones deliver high quality sound that will never exceed 85 decibels, ensuring young developing ears are protected.