The issue is that every once in a while, I need to press in where the speaker is on the right hand earphone, in order to hear anything properly. audio quality not good, anc is not good either. It has been a month with this case and honestly I am very disappointed. The sound is full and consistent in both wired and wireless modes. Installed on a 2x4 wall stud in garage. Ive spent double this amount on a waist trainer. Let me just say that I literally hiked in a waterfall area this summer in none other than these! This newer model opens on the end like a box of cereal. It has 3 rows of eye hooks like a bra & Ive already gone to the tightest one! Yes I understand the bottom is waterproof and the top is water resistant.