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Bluetooth 1.2 allowed for faster speed up to ≈700 kbit/s. Bluetooth 2.0 improved on this for speeds up to 3 Mbit/s. Bluetooth 2.1 improved device pairing speed and security. Bluetooth 3.0 again improved transfer speed up to 24 Mbit/s. In 2010 Bluetooth 4.0 (Low Energy) was released with its main focus being reduced power consumption.
Bluetooth Low Energy (Bluetooth LE, colloquially BLE, formerly marketed as Bluetooth Smart [1]) is a wireless personal area network technology designed and marketed by the Bluetooth Special Interest Group (Bluetooth SIG) [2] aimed at novel applications in the healthcare, fitness, beacons, [3] security, and home entertainment industries. [4]
On 12 July 2022, the Bluetooth SIG announced the completion of Bluetooth LE Audio. The standard has a lower minimum latency claim of 20–30 ms vs Bluetooth Classic audio of 100–200 ms. [125] At IFA in August 2023 Samsung announced support for Auracast through a software update for their Galaxy Buds2 Pro and two of their TV's. [126]
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. It can also be used on the Internet. [2]
Bluetooth Bluetooth Low Energy Tag requires power No Yes Cost of tag US$0.10 US$5.00 RFID compatible ISO/IEC 18000-3: Active Standardisation body ISO/IEC Bluetooth SIG Network standard: ISO/IEC 13157 etc. was IEEE 802.15.1; now by SIG specs Topology Point-to-point Wireless personal area network (WPAN) Cryptography Not with RFID Available Range
With radio waves, intended distances can be short, such as a few meters for Bluetooth, or as far as millions of kilometers for deep-space radio communications. It encompasses various types of fixed, mobile, and portable applications, including two-way radios, cellular telephones, personal digital assistants (PDAs), and wireless networking.
200–600 53–185, varies with transmission frequency Time interleaving depth (ms) 384 0.6–3.5 0.6–3.5 200–500 Up to 250 (500 with extension frame) Adaptive transmission: None None None None Multiple access method: None None None None Typical source coding: 192 kbit/s MPEG2 Audio layer 2 2–18 Mbit/s Standard – HDTV H.264 or MPEG2 H.264
MBS-400 bluetooth stereo speaker set - consists of MBS-200 as primary speaker and MPS-200 as secondary stereo speaker (connected via 3.5mm, no bluetooth, both need power) MBS-900 bluetooth speaker with integrated subwoofer (also has 3.5mm input) MS-500 waterproof outdoor bluetooth speaker (2xAA battery driven) RA3000 Wireless 360 Reality Audio [14]