All ears are unique meaning in-ear earphones sometimes can be a bit tricky in terms of finding a proper fit inside the ear canal for some users. We include a wide variety of sizes (XXS-L) on our silicon sleeves and in some models we also include foam sleeves. You can also have different size on your ears meaning one side can have Medium and the other Small so go ahead and try them all out. A bad fit will cause less bass response and they will also be more prone to fall out of your ear when you are on the go. It is also good to every now and then clean your ears since the ear wax can make it tougher for the silicone sleeves to stick onto the sides of the inner ear canal.
If the silicon sleeves doesn't make it for you we recommend trying out Comply Foam Sleeves that expand inside the ear canal. You can purchase these on our accessory page jaysheadphones.com/accessories. If you normally use XXS, XS or S on silicon sleeves we recommend foam sleeves with the size M. If you normally use M or L on silicon sleeves then go for L on the foam sleeves. We currently have no foam model available that fits a-Six Wireless.
Remember most of our earphones can be used behind the ears meaning the ear absorb the microphonics (cable noise) and when you pull the cable they will still be stuck in your ears.