JBL have released a set of Bluetooth headphones specifically designed for young kids to use, the JR300BT.  Apart from the colour scheme and bundled stickers there are a few other features to make these headphones kid friendly, such as the audio being limited to a maximum of 85dB so your child can't damage their ears before their first concert.  The only input is a micro-USB plug for charging so there is not much to break off or to insert questionable things into.  The power and link buttons are large enough for small hands and are relatively flush so inquiring young minds won't be able to remove them easily.  

Pop by Legit Reviews for a full review.

"That also means that millions of kids will be traveling for the holidays and parents will be stuck trying to keep them entertained for hours on end. Today, we’ll be taking a quick look at the JBL JR300BT wireless headphones that are 85dB limited to protect hearing, are super lightweight and properly sized for kids ages 3 to 10 years old."

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