With an extra long USB-C cable of 2 or 3m, you have extra freedom of movement while you charge. That means you don't have to keep your smartphone next to the socket when it's charging. The longest USB-C cable is 3m, which allows you to even connect your device to the socket on the other end of the room. Buy a cable that fits in your charger and in the device you want to charge. The iPhone 15, more recent iPad models, and all smartphones and tablets from other brands have a USB-C port. Nylon or kevlar cables last longer than standard plastic cables.