EAKAI Digital Optical Coax to Analog RCA Audio Converter with 3.5 mm Jack, 24-bit DAC with DC 5V Power Supply Adapter [USA UL Licensed] Converts SPDIF Optical or Coaxial digital PCM audio input to analog stereo L/R RCA and 3.5mm headphone outputs simultaneously [NOTE: Please set your DVD or player with AUDIO PCM MODEL output; Converter and transfer audio signal only, do not support audio decode] Supported sample rates including 32KHz, 44.1KHz, 48KHz, 96KHz, up to 24-bit resolution. Inner special IC unit of amplify analog audio signal to ensure strong and steady signal out; Ultra low jitter and high fidelity design using new receiver & D/A converter chip Provides electromagnetic-noise-free transmission, and auto sensing input selection with priority given to SPDIF. Note:Please take off the protective caps of the Optical Cable and set your device audio output in PCM format before connecting!! Plug and play. DC 5V power adapter included. One Year Warranty by EAKAI.