Admittedly I lost my fob recently and for several weeks. I finally found it in the pocket of a jacket I don’t wear very often. I wasn’t sure if it might have slipped out of my pocket. Normally I don’t have an issue misplacing my keys, for the longest time it was my wife who wouldn’t know where she put hers. Not wanting to go through that ordeal again, I ended up picking up a pair of Tile Pro (2020). These are Bluetooth enabled devices you can attach to your key ring (among many other items). Download their app, follow the on-screen directions, and setup is pretty quick and easy. Tile uses Bluetooth to communicate with your phone and this is how you can track/locate them. If you have a tile, but can’t find your phone, simply press the button on the tile and it will send an audible alert to your phone. Even if your phone is on vibrate. The latest 2020 version is supposed to be capable of a 200 foot range. They come with a lithium battery that is expected to last a year and are also replaceable. https://amzn.to/3eJtjmA https://amzn.to/3eJtjmA