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Learn about the core and adopted protocols used by Bluetooth, a wireless data exchange standard. The protocols are divided into controller stack and host stack, and include ACL, SCO, LMP, HCI, L2CAP, BNEP, RFCOMM, SDP, and more.
Bluetooth is a short-range wireless technology standard for exchanging data and building personal area networks. It was developed by Ericsson in 1989 and launched as an open industry standard in 1998 by the Bluetooth SIG, with IBM, Intel, Nokia, and Toshiba as founding members.
Learn about the origin and evolution of headphones, from the first telephone receivers to the modern wireless earbuds. Discover the different types of headphones, such as circumaural, supra-aural, earbuds, and bone conduction, and how they connect to various audio sources.
AOL Mail offers secure and personalized email with features like AOL Mail, news, and weather for free. You can also access your email on the go with an iOS & Android app and get help from experts.
Learn about the history and role of the speaker of the House, the presiding officer and political leader of the U.S. House of Representatives. See the list of 56 individuals who have served as speaker since 1789, with their party, district, and term.
Find answers to common questions and issues about AOL Mail, such as how to create a signature, add images, fix errors, and more. Get live chat or phone support from AOL experts or browse the articles and tutorials for help.
Ray J is the younger brother of Brandy and a former reality TV star. He is known for his R&B songs, his sex tape with Kim Kardashian, and his technology companies Raytroniks and Raycon.
Learn about audio headsets, a combination of headphone and microphone that connect to telephones, computers or mobile phones. Find out the different styles, designs, compatibility and functions of audio headsets for various applications.