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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.
Hearables are electronic in-ear devices for multiple purposes, such as hearing health, communication, entertainment and guidance. They are often controlled by voice, touch, movement or thought, and can integrate sensors, speakers, microphones and Bluetooth IC.
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 different Bluetooth profiles and their functions, such as A2DP for audio streaming, AVRCP for remote control, and BIP for image transfer. A2DP is a profile that defines how multimedia audio can be streamed from one device to another over a Bluetooth connection.
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.
Learn about the different types of electrical or optical connectors for carrying audio or video signals, and the physical and data layer parameters they define. Compare analog and digital formats, and see examples of common connectors such as RCA, HDMI, DVI, and USB.
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.
Pairing, sometimes known as bonding, is a process used in computer networking that helps set up an initial linkage between computing devices to allow communications between them. The most common example is used in Bluetooth , where the pairing process is used to link devices like a Bluetooth headset with a mobile phone .