For a child under 10 they will probably fit just fine. I bought these hoping they would fit my small adult female head better. These headphones were only slightly smaller than the other adult headphone brands I have. I've found that they don't stay on my head like my other bone conduction headphones. Again, this is not a negative argument against the product, but my personal opinion. The headphones have a maximum volume in decibels, which I felt was not loud enough. For a young child, that set of maximum decibels probably works well. I also didn't like the bass and overall sound quality compared to my other headphones. So in general I would recommend it for a child but not for an adult because of the sound quality. The seller immediately organized the delivery and return of the goods. No complaints at all about the seller.
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