Product Description: 3x1 Optical Fiber Digital Audio Decoder - Optical to SPDIF/AV/RCA Converter Versatile Input and Output Options: This audio decoder features 3-channel optical fiber digital audio inputs that can be easily switched to 1-channel optical output. It decodes audio into 1-channel L/R analog audio output and 1-channel headphone output, providing flexibility for various audio setups. High-Quality Audio Processing: Equipped with a 24-bit DSP and a 96KHz/24bit DAC digital processing chip, this converter supports a wide range of digital audio formats, including AC3, DTS, THX, HDCD, and PCM. Enjoy superior sound quality with precise audio decoding. Intelligent Signal Recognition: The device automatically detects and recognizes input digital audio signal formats, converting them into stereo analog audio output. With a power-off memory function, it remembers your last input source, eliminating the need to reselect it after restarting. User-Friendly Operation: Switch input sources and power standby with a single button for quick and convenient operation. The headphone output can directly drive universal headphones with a 3.5mm plug, making it easy to enjoy personal audio experiences. Enhanced Protection and Low Noise: Designed with a DC overvoltage protection function, this decoder effectively prevents damage from incorrect power supplies. It operates with low noise, ensuring a clear and uninterrupted audio experience. Upgrade your audio system with this 3x1 Optical Fiber Digital Audio Decoder, offering seamless switching, high-quality sound processing, and robust protection features for an enhanced listening experience.