Premium Fiber Optic Digital Audio Cable (Toslink) that is Constructed from a Single Strand of 1.493mm High Purity Optical Grade Fiber for Optimum Signal Transmission of Multichannel Digital Audio. This Premium Cable is Immune to Electromagnetic Interference and Radio Frequency. Our Highly Polished Convex Lens Focuses Light for a Highly Accurate Digital Signal Transfer. The 24K Gold Plated Collar Protects the Lens from Damage. Toslink is Compatible with Dolby Digital, DTS, S/PDIF, ADAT