Founded by an entrepreneur named Fredrick Whitney Horn, Denon was founded in Japan in 1910 as Denki Onkyo Kabushikigaisha. Denon is an electronics equipment manufacturing company that focuses on the production of digital audio and visual technology. Within audio technology, the company specializes in developing high-fidelity audio equipment for consumer, commercial, and professional use. The company began by selling gramophones and has since developed an extensive portfolio with a range of different product lines that are distributed in many countries across the world. Their portfolio consists mainly of music systems, Bluetooth speakers and headphones, over-the-ear headphones, earphones, home theatre systems, amplifiers, and others.