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. The Lightweight and flexible Blue Rigger Toslink cable is made of up of a durable PVC outer layer. It has gold-plated connectors that resist corrosion and offer optimal signal transfer. It uses an optical fiber cable that prevents electromagnetic and radio frequency noise leaving you with greater sonic accuracy and a more detailed, natural sound unlike an electrical cable.