INVISIO® has in a few years - due to the Bone Conduction Microphone - grown to become the worlds leading brand of headsets for very demanding professional users in rough environments.
When speaking, the speech sound will generate vibrations in the in the persons mouth and jawbone. Via the jawbone, the vibrations are transmitted to the ear canal where the INVISIO® headset picks it up by the patented Bone Conduction Microphone. Because the speech signal is not passed through the air from mouth to the headset, as in a other headsets, ambient noise is effectively eliminated and therefore not audible for the person spoken to over the radio or phone.
NO NOISE. ONLY YOUR VOICE.