There is absolutely no trick to using this feature in Leopard, but it is new and undocumented in the 300 features that Apple lists, so I thought I ought to mention it. Leopard supports the A2DP Bluetooth profile. This profile allows for the transfer of high-quality stereo audio over Bluetooth. In previous versions of the Mac OS, the only Bluetooth audio profile supported was headset, limiting output to low data-rate mono sound. I successfully paired my Plantronics Bluetooth headphones with my MacBook in Leopard. Leopard creates two audio devices after pairing, one of which is labeled "headset" and uses the headset profile, the other is labeled "headphones" and uses full A2DP Stereo. In addition, Leopard supports the ...

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