The Bluetooth standard emerged in the late 1990s and has since evolved to differentiate between various use cases through profiles such as A2DP and HSP/HFP. These profiles cater to different needs, with A2DP optimized for high-quality audio streaming in one direction, while HSP/HFP is designed for hands-free devices like headsets and car systems, providing low-bitrate, low-audio-buffering-delay codecs. Proprietary profiles, implemented by companies like Apple, can offer higher-quality audio and additional features but require both input and output devices to support them. The latest Bluetooth 5.2 specification introduces Bluetooth LE Audio, which promises improved audio quality through the use of LC3 codec, but its adoption is still limited due to hardware requirements. As a user, switching between high-quality profiles can be jarring, and there are ways to mitigate this, such as changing the microphone used in video call applications or selecting devices that support higher-quality profiles.