Bluetooth's current location technology isn't particularly exacting. Its proximity features can tell you when you're close, but not which way to go -- and the position features are only accurate down to the meter level (about 3.3 feet), which can only help so much when a gadget falls between the couch seats. It's about to improve by leaps and bounds, however, The Bluetooth SIG has introduced direction finding support in its 5.1 standard to make location tech far more precise and overall useful.
Source: Bluetooth, Business Wire
Bluetooth direction finding will locate your keys posted first on https://www.engadget.com
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