1. 4-Ports SPDIF (2×Toslink and 2×Coaxial) digital audio input, switch to 1-Port SPDIF/Toslink output 2.and one L/R analog audio output and one headphone output 3. Uses 192KHZ/24bitDAC 4. Support digital audio formats: Dolby AC3, DTS, THX, HDCD, LPCM for SPDIF output 5. Support LPCM digital audio converted to analog audio output 6. Automatic identification input digital audio signal format, when non-LPCM input, analog output mute 7. Input status indication. When no audio or error data input, the input port indicator starts to flash 8. A key switch, easy operation 9. Headphone amplifier output, can drive the general 3.5mm earphone 10. High tone quality, low noise 11.Power-off memory 12.DC5V/1A power adapter