Premium Digital to Analog Audio. Dolby Digital Approved. Converts coaxial or Toslink digital audio signals to analog L/R audio. Select toggle switch is used to choose Coaxial or Toslink as the input. Supports DTS/Dolby Digital audio source. Built-in Dolby/DB HD, the DTS HD, LPCM/LPCM with decoding. 24-bit S/PDIF incoming bit stream on left and right channels. Power Supply: 5V DC. UL Listed