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[edited by: engine at 3:45 pm (utc) on Jul 27, 2016]
a would be eavesdropper would need to employ an air born drone to compromise my security.
Officially Class 3 radios have a range of up to 1 meter (3 ft), Class 2, most commonly found in mobile devices, 10 meters (33 ft), and Class 1, primarily for industrial use cases,100 meters (300 ft). Bluetooth Marketing qualifies that Class 1 range is in most cases 20–30 meters (66–98 ft), and Class 2 range 5–10 meters (16–33 ft).Then you have Bluetooth 4 with a range of 200 feet (60.96 m), and the upcoming Bluetooth 5 will have a range of 800 feet (243.84 m), so it's not inconceivable that these signals could be sniffed by neighbors.