You may have seen reference to the A2DP Bluetooth profile on your smartphone, your mobile device packaging, or in the product literature. But, what does this mean, and what does it reveal about a particular device?
A2DP, short for Advanced Audio Distribution Profile, is a Bluetooth profile defined and adopted by the Bluetooth Special Interest Group, or SIG. This profile allows audio to be transmitted via Bluetooth to supported devices for either mono or stereo sound. The A2DP profile is important because it is capable of transmitting stereo sound from a device over Bluetooth, allowing wireless headphones and other audio accessories to be used.
In the case of a smartphone, PDA or tablet featuring A2DP, you are able to use wireless Bluetooth headphones or earbuds to enjoy stereo sound, just as you would through wired headphones. Some A2DP headphones double as Bluetooth headsets for smartphones, and some Bluetooth headsets also support A2DP.
The majority of Bluetooth 2.x, 3.0 and 4.0 devices include the A2DP profile.
Check your product documentation for compatibility information.
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