Foam padding is a lot stiffer than the ones it originally came with, which decreases the amount of noise isolation. Never had any complaints from people saying I sounded like I am in a tunnel or that they couldnt hear me. birkenstock zermatt red plaid I use a cheap Chinese phone with a Cyrus Soundkey DAC/headphone amp connected to my IEMs. This is being returned. birkenstock zermatt red plaid It’s very stretchy. birkenstock zermatt red plaid 5 y me quedaron perfecto. I bought a size up like most reviewers recommended. The sound if good for the size and very clear. birkenstock zermatt red plaid 0, good battery life, quick charging, good sound, great range. The a40s only have the mute switch which way up the headphone wire so you kinda gotta look down and turn your head awkwardly to see/use it.
birkenstock zermatt red plaid