I am running Kali 2.0 on virtualbox 5.0.12 with the extensions pack. My host is Windows 8.
At first I was having trouble getting the VM to see the TP-Link WN722N USB wireless card. I finally fixed that.
Now, however, I don't have any wireless connectivity. I've tried researching the problem, but haven't found anything helpful.
Here is an album of lsusb, iwconfig, and ifconfig outputs. Sorry, I couldn't directly post the images.