Optical cables are a must-have for any audio enthusiasts. Constructed from a single strand of 1.493mm High-Purity optical grade fiber, it offers an excellent signal transmission. The manufacturing process employs a sophisticated lens-polishing technique to make the clearest end possible. The construction includes micro convex ends, which highly focuses the beam of light. These techniques result in minimal error even with a highly distorted signal. Toslink cables are immune to Electromagnetic Interference and Radio Frequency Interference which is common to standard Audio/Video cables.Applications: Primarily used to connect audio equipment like: Audio receivers,DVD players, SACD players Sat top boxes and cable boxes or any audio equipment that would utilize this type of connection.Specs:High-purity optical grade fiber 1.950mm single optical strand. Polished lenses. Micro convex ends.1.5mm inner jacket(PE),2mm second inner jacket(PVC),2.5mm outer jacket(PVC).1mm nylon sleeve. Total thickness 10mm.