Key features Input options: 1 SPDIF Optical and 1 Coaxial digital input, providing flexible connection to digital audio sources. Auto format detection: Automatically detects AC3, LPCM, and PCM formats without manual action, simplifying setup and use. Output for listening: 3.5 mm headphone port output for direct, convenient listening. Efficient operation: Designed for efficient use in daily listening setups. Fast startup: Ready to use in approximately 3 seconds, minimizing waiting time between power on and playback. What it solves Simplifies digital audio connection by offering both SPDIF Optical and Coaxial inputs in a single device. Eliminates the need to manually switch input formats, as common audio formats are detected automatically. Enables easy headphone listening from digital sources without requiring additional adapters or DACs. Reduces delay between powering on and starting playback with a rapid startup time. Compatibility and use cases Home theater and TV setup: Connect a TV, Bluray player, or set box with optical or coaxial output, then listen through wired headphones. PC or laptop audio: Use the digital audio output from a computer to drive headphones directly, compatible with common PCM and AC3 sources. Gaming consoles and media players: Route digital audio from game consoles or media players to the headphone output for private listening. Notes Function is centered on providing flexible digital input, automatic format detection, a 3.5 mm headphone output, and quick startup for straightforward, reliable use.