1.3-Ports SPDIF/Toslink input, Supports 1-Port SPDIF/Toslink output and L/R analog audio output and 2.one headphone output 3.24bit DSP and 96KHZ/24bitDAC 4.Support digital audio formats: Dolby AC3, DTS, THX, HDCD, PCM ETC 5.Automatic identification input digital audio signal format and output stereo analog audio 6.A key switch, easy operation 7.Headphone output, can drive the general 3.5mm earphone 8.High tone quality, low noise 9.Power-off memory 10.DC overvoltage protection 11.DC5V/1A power adapter