This optical digital audio switcher is designed for use with PS4 and HDTV. It supports multiple audio formats, including DTS-HD, Dolby-trueHD, and LPCM2.0. The switcher has four optical fiber signal inputs and two outputs, allowing you to switch between different audio sources. It comes with a remote control for easy operation and has a compact design for easy installation. The switcher also features over-voltage protection and LED status indication. It is easy to install and use, making it a great addition to your home theater system.