I want to upgrade Bluetooth Card(Airport Card).
The MacBook Air 13" Mid 2011 doesn't support Bluetooth 4.0.
But an upgrade to "Bluetooth 2.1+EDR" is possible.
The question is, is "Bluetooth 2.1 + EDR (Enhanced Data Rate)" possible the linkage(hand off, etcs) of the Mac and IOS?
Is this a good question?