Bluetooth
certification mark
Blue·tooth
ˈblü-ˌtüth 
—used to certify the interoperability of telecommunications equipment utilizing UHF radio waves for the close-range wireless transfer of data
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“Bluetooth.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Bluetooth. Accessed 2 Dec. 2025.
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