Bang & Olufsen (B&O) is a Danish high-end consumer electronics company that designs and manufactures audio products, televisions, and telephones. The company was founded in 1925 by Peter Bang and Svend Olufsen, who invented the first mass-produced radio that could be plugged into the wall, without the need for a battery. B&O is known for its iconic audio and home entertainment products that are made to the highest standards of sound, craft, and design.