This item is perfect for keeping track of something you can't afford to lose. It connects to your phone by Bluetooth (really easy - simply download their app) and then it stays synced when in range of Bluetooth. If you ever can't find your item, you can get it to beep (and vice versa with your phone). Obviously you can only see a map of where it was last located, as it doesn't send real-time GPS info as it needs your phone to connect to. It can also sound an alarm on your phone if the item it is attached to goes out of bluetooth range. My big bunch of keys now feels a lot safer than before.