Bravo Headset IV is a CTAC style headset for airsoft use.  It's 2 pin connector is compatible with most 2-pin style Motorola FRS radios and features a remove Push-To-Talk button.  This headset is also designed to fit comfortably under MICH style helmets, even replica helmets!!  The headset covers both ears, but has external sound sensors so that you don't lose ambient noise.