i first ordered these
https://www.ebay.com/itm/Sponge-Foa...Airpods-Pro-Airpods-3-Headphones/274140499698 and when i purchased them they claimed to be memory foam. i’m glad to see they changed the description because they are not memory foam. after extended use i found the fit and sound good but uncomfortable.
then i bought these
https://www.ebay.com/vod/FetchOrderDetails?itemId=274234555741&transactionId=2263141878017 these are true memory foam. the fit, sound and comfort were all good. but i couldn’t pass the ear tip test in the settings app.
i received the charjenspro tips today. they are not identical to the above ebay tips. the memory foam is softer and compresses and keeps the compression longer. so if i press in the tips before inserting in my ear, they stay compressed and slowly expand. the tips are also more securely affixed to the app. i’d say the connection is as secure as apple’s. but, when i put them in my ears, as the memory foam expands i can feel the app slowly slipping out. with that said, the app remains secure in my ear. again but, i cannot pass the ear tip test in the settings app. the sound is good and they are comfortable. i think they are expensive being that you only get two pairs. ymmv and maybe it is just my ears. my opinion and thought is maybe the foam allows the sound to escape because it is not a solid material and that is why the ear tip test fails. i think i’ll just stick with apple’s silicon tips and save my money.