Unlike AirPods that I?ve seen people walk around with the case in their pocket all day, here you just switch the battery and boom, new and fresh. I came across these and I?m so glad I bought these. My daughter loves these sandals and they fit true to size. You cant see the charging light through the case either. I only ordered these Chacos because I wanted a solid color strap. It has a little thing on the side to simply adjust the size. I now train for health, fitness and vanity ??. Not needing a cellular or Wi-Fi connection to use it makes it extremely fast. Just about every similar crossbar available online, the seller lists the cross-sectional dimensions -- so its obvious that this information is important! Now that she can charge her computer, she isnt always taking mine!