Facebook Bluetooth Beacon
From Infogalactic: the planetary knowledge core
The Facebook Bluetooth Beacon is a hardware beacon released by Facebook in 2015. The beacon uses a bluetooth connection to communicate with the Facebook app on the user's smartphone, informing it of the phone's location.[1] The technology allows location-specific advertising to be pushed to the user's Facebook feed.[1]
In June 2015, Facebook gave free beacons to a number of businesses in the United States.[2]
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