thumb|A Bluetooth earbud, an earphone and microphone that communicates with a cellphone using the Bluetooth protocol
Bluetooth is a wireless technology that allows devices like earbuds to communicate with each other over short distances without needing cables. It matters because it enables convenient, cable-free connections between everyday gadgets like phones and headphones.
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thumb|A Bluetooth earbud, an earphone and microphone that communicates with a cellphone using the Bluetooth protocol
Bluetooth is a short-range wireless technology standard that is used for exchanging data between fixed and mobile devices over short distances and building personal area networks (PANs). In the most widely used mode, transmission power is limited to 2.5 milliwatts, giving it a very short range of up to . It employs UHF radio waves in the ISM bands, from 2.402GHz to 2.48GHz. It is mainly used as an alternative to wired connections to exchange files between nearby portable devices and connect cell phones and music players with wireless headphones, wireless speakers, HIFI systems, car audio and wireless transmission between TVs and soundbars.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).