In the ranks of nagging annoyances, the search for misplaced keys (especially when you are late) is pretty high.
A product called Stick-N-Find has a solution: a Bluetooth beacon with an adhesive backing that you can stick to your keys or anything else you might lose. You can use your phone to home in on the beacon.
The little gizmos are easy to use. The adhesive-backed disks, about the size of two quarters stacked together , can stick to anything you might hunt for between the couch cushions. A free Stick-N-Find app goes on an iPhone 5 or 4S, the new iPad, iPad mini, the new iPod touch, or any Android phone with Bluetooth Low Energy and system 4.1.
Then the phone acts as a homing device that lets you zero in on up to 20 Bluetooth beacons. You name each beacon using the app, so you can always track down the right item (provided it is not your phone that you have lost).
When you come within range, you can press a button on the phone that causes the beacon to chirp and light up. You can also create an electronic leash that sets off the chirp when the beacons are outside of tracking range. That could stop you walking out of a restaurant without your keys.
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