Digital to Analog Audio Decoder(Convert DTS/AC3 source digital audio to analog 2.0ch stereo audio output) Input ports:1xToslink/SPDIF ,1xCoaxial Output ports:2xRCA(L/R), 1x3.5mmPhoneJack. Signal to Noise: 120db ;Degree of Separation: 85db No need to install drivers, portable, flexible, plug and play. Convert DTS/AC3 source digital audio to analog 2.0ch stereo audio output.