SPDIF/ Toslink Digital Optical audio switch 3 input – 1 Output. Features: 3 Toslink Input 1 Toslink Output Supports signal retiming Audio formats: LPCM2.0 / DTS / Dolby – AC3 Use optical fiber cable loss less 0.2DB/m Output distance up to 40m The device can be controlled using a remote control, or pushing the button “select” Support last time working state memory when power off Over-voltage protection LED status indicator There is no quality loss on the signal Very easy to install