I got this a little while ago and i was irritated because ASGI forgot to send the PTT button...the PTT pin is the same sive as one for a cell phone or other things like that, the standard type. Now the head set's speaker is very loud, and still lound on its lowest setting. I figured out that by taking a little peice of cotton and putting it in the little hole it makes the volume absolutely perfect.
Also I took the clip off the PTT (two inner screws) so I could put velcro and mount it higher on my vest.
fits with full face mask (after taking off ear guards)
comes with PTT button
Not very adjustable
Super loud (very fixable with cotton in speaker hole)
not many people have radios, especially headsets
Worth it: YES
Rating: [5 of 5 Stars!]