Optical audio connection carries a digital audio stream using a fiber-optic cable. It is perfect for connecting your audio devices such as CD/DVD players to a receiver, preamplifier or audio processor. Toslink cable allows enjoyment of movies with Dolby Digital and DTS surround sound. It helps connect audio components such as CD/DVD player, digital satellite and more to your home/audio theater system, preamplifier, receiver, audio processors and digital-to-analog converters (DACs). Optical fiber & precision-polished optical connectors provides crystal clear sound.