I picked up mine when amazon had them in stock for $24.99
I bought a pair for my son and myself. The mic is always on I think, I'm not sure if the headphones that come with the ps4 are like that but if you make sure the mic is a few inches away from your mouth you won't hear breathing. They plug right into the controller and work very well. The mic audio is very very clear. Sound is very good as well. THe cord is also the perfect length for plugging into the controller.
These are good cheap headphones.