I had decent luck with the Quanum V2's, but my wires broke and smoked and it's all in a box in the closet. It can maybe be fixed, but not by me! I've tried the Vipers, and they work OK, but I still have to use 5x magnifier glasses like I did with the Quanums. My bifocals didn't cut it. I seem to have weird vision... But I'd rather not spend $150+ right now, being retired and poor. Something $40-$50 would be much better, I could hack the sides away if I have to do that to make the glasses fit, did that with the Quanums. I keep looking at the Eachines at Banggood. Then when I can afford the Vipers I'll have an extra pair of goggles to scare my friends with.