What is it called when two Bluetooth devices connect and remember each other for the first time?
AnswerPairing
Pairing sets up a trusted link between two devices so they can reconnect automatically later.
Tech · Facts & stats
BT facts & stats
7 fact-checked facts about Bluetooth wireless technology, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
Bluetooth is mainly designed for what kind of connection?
AnswerShort-range wireless links
Bluetooth was designed to connect nearby devices, such as headphones and phones, without cables.
Going deeper
Bluetooth is named after Harald Bluetooth, a 10th-century king of which country?
AnswerDenmark
Harald 'Bluetooth' Gormsson was a Viking-age king known for uniting tribes, fitting a tech that unites devices.
Bluetooth operates in which radio frequency band?
Answer2.4 GHz
Bluetooth uses the licence-free 2.4 GHz ISM band, from about 2.400 to 2.4835 GHz.
Bluetooth was first developed as a wireless replacement for what?
AnswerShort data cables between devices
Bluetooth began in the 1990s as a way to replace short serial cables linking phones, computers and accessories.
Expert level
The Bluetooth logo combines which two runes?
AnswerThe runes for H and B
The logo merges the Younger Futhark runes for H and B, the initials of Harald Bluetooth.
What is a small ad hoc network of connected Bluetooth devices called?
AnswerA piconet
A piconet links one central Bluetooth device with a small number of active peripheral devices.
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