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SBC, or low-complexity subband codec, is an audio subband codec specified by the Bluetooth Special Interest Group (SIG) for the Advanced Audio Distribution Profile (A2DP). [ 1] SBC is a digital audio encoder and decoder used to transfer data to Bluetooth audio output devices like headphones or loudspeakers.
LDAC ( L ossless D igital A udio C odec) is a proprietary audio coding technology developed by Sony, which allows streaming high-resolution audio over Bluetooth connections at up to 990 kbps at 32 bits/96 kHz. It is used by various products, including headphones, earphones, smartphones, portable media players, active speakers, and home theaters .
Most Bluetooth headsets implement both Hands-Free Profile and Headset Profile, because of the extra features in HFP for use with a mobile phone, such as last number redial, call waiting and voice dialing. The mobile phone side of an HFP link is Audio Gateway or HFP Server. The automobile side of HFP link is Car Kit or HFP Client.
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 10 metres (33 ft).
The Yepp U series is a famous line of USB key MP3 players introduced in 2005 with the YP-U1. The latest one YP-U7 was released in 2012. All U players have a similar USB key form factor with a 1-inch 128×64 screen. They all support MP3, WMA and OGG files but some devices support more codecs.
AirPods are wireless Bluetooth earbuds ... device that supports Bluetooth 4.0 or higher, including Windows ... hands-free "Hey Siri", Bluetooth 5 ...
MP3 CD/DVD players: Portable CD players that can decode and play MP3 audio files stored on CDs. Such players were typically a less expensive alternative than either the hard drive or flash-based players when the first units of these were released. The blank CD-R media they use is inexpensive.
The Sansa Fuze, released on March 28, 2008 [ 13] in capacities of 2, 4 and 8 GB, is a portable media player with a 1.9-inch color display and a thickness of 0.3 inches (8 mm). It also features a 40-preset FM radio with FM recording, a voice recorder, and a 24-hour battery life on continuous audio playback.