
Sony Mdr-Ex110lp
Cable
Sony Mdr-Ex110lp
Cable
Yeah... Rubber thingy is a great definition to ask a question about. I would suggest to watch a (or a few) Youtube Videos where people unbox and review the product and maybe give you a better idea what "Rubber thingy" is used for: https://www.youtube.com/watch?v=O_23D3-gtBw
Sony EP-NI1000 (Various) But they are not available at the moment.
The iPhone 11 has a Lightning socket and these Sony earphones have a 3.5 mm jack plug. An adapter jack -> Lightning is therefore necessary.
Try switching to the model with universal remote control on the product page, which has an integrated microphone.