1、 Digital-to-analog converter: This DAC converter can convert coaxial or for Toslink digital audio signals into analog left/right audio, and can be connected to external devices, such as amplifiers, through standard RCA-type jacks, and you can also choose 5mm headphones Jack output, connected to high-fidelity headphones, is an ideal choice for home or professional audio switching.  2、 Two-way switch: The design of two-way switch makes it more than DAC converter. It not only supports digital-to-analog converter, but also supports digital-to-analog converter (support for Toslink to coaxial and Coaxial to for Toslink), please note: this converter supports Digital to analog, but does not support analog digital.  3、 Support volume adjustment: Built-in high-fidelity amplifier chip, left/right and 5mm output can drive 16~150ohm impedance headphones/sound. Support volume control, volume control knob, only used to adjust the volume of the headphone jack and RCA jack, not for coaxial or for Toslink.  4、 Plug and play: Comes with 0 OD optical cable, coaxial cable and power adapter, no need to install additional programs, just plug and play (note: this converter does not support 1 channels such as Dolby and DTS; please Set the audio output to PCM or LPCM before use; for PS4 Pro and for PS4 Slim cannot use this converter).  5、 Up to 192KHz sampling rate: Using the volume knob, you can adjust the audio output volume of the RCA L/R + 5mm jack, which is easy to use (note: you cannot control for Toslink or coaxial audio output). It actually supports sampling rates of 32, 41, 48, 96 and 192 KHz, as well as 24-bit S/PDIF incoming bit streams on the left and right channels. 6、