These earphones are very comfortable on the ear and the noise canceling and sound quality are excellent. It will also give your product a longer battery life span because it is not sitting in the charger case when it is fully charged. The post the iPhone sets against is adjustable, so it can accommodate a case if you use one. Planning on returning these as they are TERRIBLE, not only they are not sturdy, they need at least an hour to charge the phone. Je recherchais un sac ou quelque chose de ce genre pour transporter plus facilement et sans risque mon enceinte Bose Revolve. I think this is it when it comes to high end keyboard model. 28g? ?Buttons are very tactile? ?Earbuds very comfortable for long sessions. If you would like to just wear one of them, you have to completely put the pair inside the charging case and then pick up whichever ear bud you would like to wear. Please note that even though we dont have a need for this, I did NOT deduct any stars because of my mistake. Advanced Fitness version is the one you will find in most gyms.