The Human Speaker is a special collar that produces sound just from you opening your mouth. Designer Nic Wallenberg has bypassed the need for sound to travel through your vocal cords.
The collar transmits vibrations directly to the upper throat (bypassing the vocal cords altogether) and generates a cybernetic sound that can be modulated by the wearer into different sounds, much like when you’re talking or singing.
Only able to generate two notes at a time, several people are required if you’re interested in composing something a little bit more complex than droning.
As you can see from the video below, there’s also the option of transforming your own voice into something a little more interesting: