"Chipolo ONE helps you find your keys in seconds. Use the Chipolo app to ring your misplaced keys or double press on Chipolo to find your phone. Get a notification from the app if you leave your keys behind. When they’re not around to ring it, you can always check the app to see when and where you last had them with you. These item finders are perfect for your keys, bag, backpack or even your child’s favorite toy. With a very loud sound you will be able to hear them even when they are buried under a pile of clothes."