Features: 1.This DAC Converter Converts Coaxial or Toslink Digital Audio Signals to Analog L/R Audio and Can Be Connected to External Devices Such as Amplifiers via a Standard RCA-Type Jack, You Can Also Choose 3.5mm Headphone Jack Output, Connect High-Fidelity Headphones, It's Ideal for Home or Professional Audio Switching. 2.Bidirectional Switch Design Makes It More Than a DAC Converter, Not only Supports Digital to Analog, Also Supports Digital to Digital (Support Toslink to Coaxial and Coaxial to Toslink) PLEASE NOTE: This Converter Supports Digital to Analog BUT NOT Support Analog to Digital. 3.Built-in High-fidelity Amplifier Chips, L/R and 3.5mm Output Can Drive 16~150ohm Impedance Headphone/Sound. Supports Volume Control, Volume Control Knob Just for Adjusting the Volume of the Headphone Interface and RCA Interface, Not for Coaxial or Toslink. 4. Comes with 4.0 OD Optical Cable, Coaxial Cable and Power Adapter, No Need to Install Extra Programs, Just Plug and Play(Note: This Converter Doesn't Support 5.1 Channel Such as Dolby and DTS; Please Set the Audio Output to PCM or LPCM Before Using; PS4 Pro and PS4 Slim Can't Use This Converter). 5.With Volume Knob, You Can Adjust the Volume of RCA L/R + 3.5mm Jack Audio Output, Convenient to Use (Note: CANNOT Control the Toslink or Coaxial Audio Output). It Actually Supports Sampling Rate at 32, 44.1, 48, 96 and 192 KHz, and 24-Bit S/PDIF Incoming Bit Stream on Left and Right Channels. Notice: Actual color may be slightly different from the image due to different monitor and light effect Please allow 1-3mm deviation due to manual measurement Body: 8.3*7.2*2.7cm USB power cord length: 60cm Optical fiber cable length: 1 meter Include: 1 set x Digital to Analog Audio Converter