If your machine can do zigzag stitch you could use a wing needle. Should you have a stitch plate for straight stitch only, then you can't. My Brother 190D, which is a stand alone embroidery machine has a small round hole which would not allow wing needles nor twin needles.
Hold the needle in your fingers and check if it fits easily through the little hole in your stitch plate, if it does I am sure it can be used.
You could check with a Brother machine dealer they should know!
I don't have a PE 770 Brother, but I will bring this ttt for others. In my opinion, if you have a foot that the windneedle will work with, I do believe you can use it.