Product Features:Digital Analog ConverterThis 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.Bidirectional SwitchBidirectional 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.Supports Volume AdjustmentBuilt-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.Plug and Play 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).192KHz Sampling Rate AchievedWith 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.Note:1. There is a power switch on the volume knob, please turn on the power switch before using the DAC.2. Please set the Audio Output to the PCM/LPCM Format.3. For Samsung TV, if there is no sound even you set the audio output to the PCM/LPCM format, please turn ON the TV external speakers (Menus-Sounds- Speaker Setup- HESB/external speaker-ON)4. This converter doesn't Support 5.1 Channel Such As Dolby and DTS.5. PS4 Pro and PS4 Slim CANNOT use this converter as they haven't Optical fiber output interface.Product Specification:Type Audio Adapter/ConverterMaterial AluminumInput interface Toslink, CoaxialOutput interface R/L RCA, Toslink, Coaxial, 3.5mmSignal Sampling Rate 32-192 KHz,Bit Rate 16-24 BitOutput Impedance 16-300 ohmWorking Voltage 5V