Sonitus’ patent protected system is built around a technology that creates a new audio path “supersense” for wireless communication, eliminating the need for ear pieces, microphones and wires on the head. A secure, comfortable mouthpiece that clips on your tooth becomes the single point of contact for incoming and outgoing wireless audio communication and augmented awareness. The mouthpiece uses the body itself to exclude outside influences.

http://www.sonitustechnologies.com/how-it-works/