Water rather than air carries sound in designer Rocco Giovannoni's Inmergo headphones, which promise rich audio even for people who are hard of hearing.

Inmergo is a novel patent-pending audio technology availing of bone conduction through liquid and gels as sound media. It generates an omnidirectional surround effect and gives richness and vibrotactile feedback to the low-end enhancing a more immersive perception of sound. By bypassing the outer and middle ear, it is inclusive to people with hearing loss and cochlear implants.