>>366359553
The wireless adapter works on most of HTC's headsets, including pro 2 but not at full resolution. There's other reasons to get vives other than pro 2 too, like >>366293301, check reviews. There's the OLED pro models, or waiting for valve to announce deckard, and nobody knows how long that'll be. I'm not sure what wireless options are for non-mainstream stuff like enterprise headsets.

>>366366840
Both of those are LCD. Most people prefer Index visuals.