Editing Bluetooth (section)

=== Bluetooth 1.2 ===
Major enhancements include:
* Faster connection and discovery
* ''Adaptive [[frequency-hopping spread spectrum]] (AFH)'', which improves resistance to [[radio frequency interference]] by avoiding the use of crowded frequencies in the hopping sequence
* Higher transmission speeds in practice than in v1.1, up to 721&nbsp;kbit/s<ref name="Guy Kewney">{{cite web
|url=http://www.newswireless.net/index.cfm/article/629
|title= High speed Bluetooth comes a step closer: enhanced data rate approved
|author=Guy Kewney
|date=16 November 2004
|publisher=Newswireless.net
|access-date=4 February 2008
|archive-url=https://web.archive.org/web/20180115173504/http://www.newswireless.net/index.cfm/article/629
|archive-date=15 January 2018
}}</ref>
* Extended Synchronous Connections (eSCO), which improve voice quality of audio links by allowing retransmissions of corrupted packets, and may optionally increase audio latency to provide better concurrent data transfer
* [[Bluetooth protocols#Host/controller interface (HCI)|Host Controller Interface]] (HCI) operation with three-wire [[Universal asynchronous receiver-transmitter|UART]]
* Ratified as [[IEEE 802.15#IEEE 802.15.1: WPAN / Bluetooth|IEEE Standard 802.15.1–2005]]<ref>{{Cite book |doi=10.1109/IEEESTD.2005.96290 |isbn=978-0-7381-4708-6 |title=IEEE Standard for Information technology-- Local and metropolitan area networks-- Specific requirements-- Part 15.1a: Wireless Medium Access Control (MAC) and Physical Layer (PHY) specifications for Wireless Personal Area Networks (WPAN)}}</ref>
* Introduced flow control and retransmission modes for {{abbr|L2CAP|Logical link control and adaptation protocol}}