if you want an competitive edge,This:
https://www.amazon.ca/ASTRO-Gaming-H...dp/B014F77FGA/
works pretty well for cs go and any fps IMO...notice when i play with people their piece of shit headphones can't even pick up foot steps or where there coming from and i see them die,complain to them "you didn't hear that?!".......Mic is pretty damn good.
if you want wireless,go for these,damn good bass and decent sound also,lot of pros use it too
https://www.amazon.ca/HyperX-HX-HSCF...dp/B077ZGRY9V/
Reason why i went with wired A40's is cause i dont want to fuck with batteries down the line after re-charging my headset 500 times its not gonna hold a strong charge.....i don't feel like burning money on gaming headphones too long,The astro A40's are also all metal construction and i had them at least 5 years still strong no cracks.