BaBylissPRO Nano Titanium Rotating Hot Air Brush, Blue, 2 Inch (Pack of 1)

I have all of other products, but I use them on weave hair which is 100% human. Can this product be use to style hair that is already dry?

is this product to be used on wet or dry hair?

How does this compare to the Conair Infinity? They look exactly the same except for the coloring?

Does is support both 110 viltage and 220 voltage (with converter) ?!