Thank you for stocking such large sizes. Do not purchase this bundle. Second survived from Oct 2019 - Sep 2020. I havent hooked up the reverse wire yet, but I assume thats how you get those parking guide lines. This only happens at high volumes, and almost never in my normal listening conditions. I put it together in five minutes, no lie. This one sits tight and is protecting the buds from accidental hits. My last 3 pars of shoes have been Teva because I went through 3 pairs of payless shoes before my first pair of Tevas even got close to wearing out. I record music / play music, etc. One more annoying, but easily remedied situation was that all 4 locks come covered in a protective film (which is theoretically great), but unfortunately hard to remove.