Review on GBD 6 Pack Smart Key Finder Locator GPS Tracking Device for Kids Boys Girls Pets Cat Dog Keychain Wallet Luggage Anti-Lost Tag Alarm Reminder Selfie Shutter APP Control Compatible with iOS and Android by Justin Metz

What a disappointment. It finds keychains, but you have to keep the app running at all times. Otherwise, the key fobs will turn off by themselves after some time. And if you move the phone too far from the keys, the alarm will sound. (It's probably great if you dropped them somewhere, but not if I left the keys on purpose, like on the desk at work, and took the phone to a meeting). I don't want the app running all the time, it drains my phone's battery. I was just hoping that maybe they have an RFID chip like a credit card and somehow you could scan it if you lose the item it was attached to. I had to return it. Well, it's easier for me to find the keys because I have bright keychains! Don't waste money!