Everything at the same moment, paying at the cash desk and your little one trying to get away and your phone ringing then it is handy to have your phone hanging around your neck or attached to your bag so it will not fall on the ground. Chockfull bag and never could find your sell phone is a fact ever since you have toys and blankets in your bag, with this necklace you can attach it to your bag's handle, so you could pull your phone out of your bag in a second. Really handy indeed!