FMA FCS AMP Tactical HeadsetFMA FCS AMP Tactical Headset The FMA FCS AMP tactical headset comes with a microphone and is designed to use two radios at once either with the FCS PTT or two standard PTT units. It is built with a flexible headband which can be swapped for the AMP helmet compatible brackets. Each earphone takes 1x AAA battery and has a rubber attachment to prevent you from dropping or losing the cap. In the box you receive: 1x Headset with band 2x Hook and loop