I previously bought these headphones through Normal and I loved the concept, at first. Their customer service was great but the way they fit the earphones was very tedious and time consuming. In order to make these headphones, Normal asks that you download their app from whichever platform you use and follow the instructions within the app, which entail taking photos of your ears at different camera angles to give them the dimensions of your ear (using a quarter as a scale reference). BUT I had to do this process 8 TIMES before I called customer service in rage. Customer service, after opening up my photos they had on file, said that I had more than enough photos for them to work with and that I didn't need to send all of those photos like they asked (which made me mad). Nevertheless, I went through the process and received the earphones within a few weeks. Upon unboxing and trying them on, they did not fit my ear (which they claimed they would), and the headphones began to fall apart within 2 months of regular use (the mesh on the piece that covers the internal components that produce the sound fell off and the buttons started to lag). And if you care about audio quality, they are just as good (or bad, however you see it) as Apple's new earphones.
Overall not pleased with product and do not recommend these over other in-ear models