Specifically designed for digital devices, Digital Coaxial Audio provides better sonic accuracy and more detailed, natural sound over cables that come with your audio device. Coaxial construction of both the conductors and plugs makes Digital Coaxial Audio ideal for digital surround sound. This differs from Digital Optical Audio, which uses pulsating light to transfer audio signals. A great solution for DTS and Dolby Digital surround sound, Blue Series Digital Coaxial Audio Cables use advanced engineering methods and the highest-quality materials to provide freedom from interference and deliver better clarity and a more natural sound from your digital audio video components.