Onanoff BuddyPhones Kid's Tech Review
These award-winning (2017 Parents Choice Award), headphones are great for even the littlest kids. They vary by 3 decibels (as opposed to the standard 5 decibels) and have a max volume of 85 dB — the recommended max volume for children according to the World Health Organization.
They’re also hypoallergenic and feature a non-tangling cord. Available in 2 and 4-packs as well as singly. Each one comes with 6 stickers to decorate — they thought of everything! For children ages 3-10. Up to 4 BuddyPhones can be shared in the same device thanks to a built-in splitter.