Not much ventilation so it fogs easily despite the anti-fog coating. Faceshield frame is real stout, if you forget to close or it comes open (highly unluckly, very strong latch) it isn't going anywhere, won't rip off like so many others. I have intentionally jumped it open when fog froze on lens. Faceshield pivot pin protrudes into cavity for audible, I had a riser slap cause it to break the crystal lens in my ProTrack. You have to remove the foam ear priece to access the audible, velcro attach wears out after a while.