I am so very happy with this item, it was a long wait but I finally have it and it is better than I ever imagined! Ive a pair of Crocs slingbacks that dont chirp, so maybe it was just the weird fit on these? I do think the leather will take a bit of breaking in as a few of the edges feel a little uncomfortable against my skin. I looked and looked for a set of wireless earbuds that would be waterproof in my hot tub. Even a tiny bump on the ANC buttons would?ve made all the difference. He asked me to buy him a 2lb "slam ball" for pitching lessons. I?ve used it and it?s perfect for my younger athletes. It is exactly as idescribed. I was a bit concerned with buying this one, given some of the negative reviews, but I ended up giving it a shot anyway. 5-Star for staying in the ear.