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The Bluetooth Core Specification Version 1.2 introduces a host of new features intended to make Bluetooth wireless technology easier and more reliable to use:

 Adaptive Frequency Hopping (AFH) – AFH was explicitly designed to reduce interference between wireless technologies sharing the 2.4 GHz spectrum. Cordless telephones, microwave ovens and certain Wireless Local Area Networking (WLAN) technologies, including IEEE 802.11b and IEEE 802.11g, generally share the same wireless frequencies as Bluetooth wireless technology. AFH works within the spectrum to take advantage of the available frequencies without limiting the Bluetooth transmission to a set of frequencies occupied by other technologies. This 'adaptive hopping' allows for more efficient transmission within the spectrum, thereby providing the user with greater performance, even if using other technologies along with the Bluetooth wireless technology.
 Enhanced Voice Processing – This feature is designed to improve the quality of voice connections, particularly in noisy environments, using error detection methodologies.
 Faster Connection Setup – This version of the wireless technology allows for even faster connections to other Bluetooth wireless devices, thus improving the user experience.
 Backward Compatible – As a core feature, the new version of the Bluetooth Core Specification is backward compatible with 1.1 Bluetooth Core Specification Version 1.1 products, allowing users of nearly all existing Bluetooth equipped devices to easily work with products built to the new Specification.