The recharge port in the middle of the band tends to irritate the top of my head because it sits right on top of my hairless head. Enlarged fingerprint scanner, which was missing in my iPhone. Doubles your plugs and allows you to charge your USB devices . , new age music. And yes, I DID use a whole bunch of these tabs on just the one glass frame. It is frustrating to pay good amount of $ for a product that doesnt work well. My children and I picked this gift for my husband. My question is. Be careful when ordering. They stay put and block outside noise.