NOTE: (the package excluding 5V DC 1A power supply, Because everyone has a bunch of them laying around the house so it saves you the extra cost of another one) .This is a Digital to Analog converter( can not be used as Analog to Digital converter),This Digital to Analog Audio Converter is Designed for Either Home or Professional Audio Switching ，Easy to Install and Simple to Operate; Can be Used for PS3, PS4, Xbox, Blu-ray Player, HD DVD, Home Cinema Systems, AV Amps, Etc It Converts Coaxial or Toslink Digital Audio .Signals to Analog L/R Audio This Converter Has Many Features That Enable It to Perform in a Superior Manner Toslink Digital Audio Signals to Analog L/R Audio Supports Sampling Rate at 32, 44.1, 48 and 96 KHz . 24-bit S/PDIF Incoming bit Stream on Left and Right Channels. This optical digital to analog converter is incompatible with 5.1 Channel Signal such as Dolby AC3, please set the audio output to PCM or LPCM before using this adapter. Rovides Electromagnetic-noise-free Transmission .Easy to Install and Simple to Operate . Supports Uncompressed 2-channel LPCM or PCM Digital Audio Signal Output; Provides Electromagnetic-noise-free Transmission(5.1 channel is incompatible, please set the audio output to PCM or LPCM） If the first connection doesn't work, check that the correct device is linked, and then try again .Package Included: 1 x Digital to Analog Audio Converter Adapter, 1 x fiber Optical cable(please Gently insert in correct way) , 1 x USB Power Cable 1,XRCA cable, 1XEnglish manual NOTE: (excluding 5V DC power supply) .NOTE:The TV is connected to the sound system through the optical interface, so the volume button on the remote control cannot be directly used to adjust the output volume of the TV optical. (If the TV supports this feature which depends on the TV itself ).