I bought this for my 10 year old daughter he?s between sizes 6,5?7 and I bought 7-8 and they fit perfectly. These don?t irritate my ears at all which is hard for me to find. On my MacBook Pro I did not hear any difference when using this cable compared to the originally supplied one. I said everything in the video but you all should definitely buy. This works great and came in a pack of 2 so I can do mine and my partners phones at the same time. Rapport qualité prix super intéressant. Lol I know hell grow in to them though. She looks forward to simply removing her socks, before a water ride, and putting them back on 5 minutes later. The magnets that link teh earbuds togther are a great design feature. It has a tiny super thing edge that keeps it snapped on the AirPod case which is nice.