I have kinda big ears so they comfortably sit and stay in my ears. The only noticeable difference is the main side button is dished in slightly on the XR700s vs the raised button on the XR500s. check them out on YouTube. Was worried itd be the wrong length since the 5 and 7 are different. However, occasionally we would anchor in a spot with some weeds and this anchor immediately failed, probably because the flukes are too short. I honestly dont mind them I didnt want something so outrageously pricey because I dont always use them. Teen now wants me to order her some. I like this charger, it great you just pick the phone up. These headphones worked great. Perfect for my 8 month old hot sleeper!