The first class M3s in-ear headset is a monauaral headset for operation on land or underwater. The bone conduction microphone allows an easy transmission of speech to your counterpart, free of any background noises and crystal clear.
For the perfect fit to your ear, a small strap is available to fix it to your ear. You are free to do any movements in combat or any other operation. The headset will withdraw nearly any of it. The wire is relocated behind the ear. It is comfortable to wear.
Like all other headsets and PTT control units, the M3s withstand all of the high requirements such as waterproof up to 20 m for your underwater combats and operations. Furthermore, it fulfills the requirements of MIL-Std. 810 G.