Thank you very much for viewing! After purchasing new, Only tried on! Please check the condition in the images. Regular price: 4000 yen (Part of the description is borrowed from the website) Developed jointly by medical and therapeutic professionals Co-developed by a pediatrician and a child development support worker! Because it's something you wear every day, we focused on comfort and lightweight design when developing these earmuffs! Noise reduction is the industry standard of 25dB. The SNR value, which indicates sound insulation performance, is 25dB. High noise reduction performance, industry standard. *SNR: Standard mainly in the EU (European Union) [You can hear outside sounds a little = peace of mind] The feature of Haretoke earmuffs is to "moderately" soften the surrounding sounds. It prevents dangerous situations by allowing you to hear adult voices. "Protecting the ears" no longer hurts. For children who take them off because they are heavy and tight... we have achieved the industry's highest level of lightness and comfort! Earmuffs specifically for children! Target age is 3 to 15 years old. It has a size adjustment function, can be used for a long time, and is durable! It comes in an original box with a cute design, so it is also used as a gift. We have received many reviews from many people! As an earmuff specialty store supervised by a pediatrician, please purchase with confidence. Easy to carry, foldable design! Compact size, almost the same size as an apple! Doesn't take up space in your bag!