Headphones that digitally transmit the sound source for a full digital sound. Using a system that utilizes only digital signal processing, problems related to sound deterioration and distortion have been resolved, enabling the reliable reproduction of original sound. By connecting the ear pads and headphones at a curve, they fit ears firmly and can be worn around the head, achieving a balance of functionality and design. A flat diaphragm that conforms to the slanting of the ears, as well as the ear pads with an ear-fitting shape were independently developed.