Designed with a small hole in the corner, Tile Mate AC-QCUBND is easy to attach to keys and other items. Or simply slip it into the pocket of your jacket or backpack. The next time, your item goes missing, let Tile Mate help you locate it in seconds. Use the app to find your Tile-connected item the next time it goes missing. When activated, a Tile within the 100-foot Bluetooth range will play one of four preset ringtones loudly until the item is located. Or, if your smartphone is what's missing, press any of your tiles to ring your phone, even if the ringer is off. The app also automatically records the last time it saw your tile. So, if you left it somewhere, you know where to look first. You can also view your item on a map that shows the Tile's last known location and time.