Bone conduction headset consists of an adjustable lightweight behind the head headband, and dual bone conduction sensors that are positioned on the users cheeks ( just in front of the ear). These sensors directly transfer vibration signals to and from the ear and vocal cords through the facial bones. So as well as being able to receive and transmit on the radio, the user also has their ears free and full spatial awareness. This product is ideal for use within a CBRN environment, or when used within a fully encapsulated PPE suit.