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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.
Google has partnered with Bluetooth SoC designers including Qualcomm, Airoha Technology, and BES Technic to add Fast Pair support to their SDKs. [3] In May 2019, Qualcomm announced their Smart Headset Reference Design, Qualcomm QCC5100, QCC3024 and QCC3034 SoC series with support for Fast Pair and Google Assistant . [ 5 ]
The Headset Profile (HSP) connects headphones and earbuds to a cell phone or laptop. The Health Device Profile (HDP) can connect a cell phone to a digital thermometer or heart rate detector. The Video Distribution Profile (VDP) sends a video stream from a video camera to a TV screen or a recording device.
The Buds 2 Pro include active noise cancellation, 24-bit Hi-Fi audio support (only for Samsung device with One UI 4.0 or above) and enhanced 360-degree audio. They were released on August 26, 2022, with a launch price of $229.99, a $30 price increase compared to the original Galaxy Buds Pro.
A Bluetooth stack is software that is an implementation of the Bluetooth protocol stack.. Bluetooth stacks can be roughly divided into two distinct categories: . General-purpose implementations that are written with emphasis on feature-richness and flexibility, usually for desktop computers.
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Headphones that use cables typically have either a 1 ⁄ 4 inch (6.4 mm) or 1 ⁄ 8 inch (3.2 mm) phone jack for plugging the headphones into the audio source. Some headphones are wireless, using Bluetooth connectivity to receive the audio signal by radio waves from source devices like cellphones and digital players. [5]
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