VIMVIP SPDIF Toslink Digital Optical Audio Switcher with Chip Inside,Support 3 In 1 Out Three ways of optical fiber signals switch to one set of SPDIF/Toslink signal receiving device. Audio format support:LPCM2.0/DTS/Dolby-AC3. Support signal retiming. Used optical fiber cable loss less the 0.2Db/m,Output distance is up to 40m. What You Get:One VIMVIP Toslink Digital Optical Audio Switcher.Our fan-favorite 18-month warranty and friendly customer service.