1. The converter can convert coaxial or non-digital audio signals into analog L / R audio, and can be connected to an external device such as an amplifier through a standard RCA connector. Or a 3.5mm headphone output, connected to true high-security headphones, which are Perfect for exchanging home or professional audio. 2. Bi-directional switch The bi-directional switch design makes it more than a DAC converter. It not only supports digital to analog converters, also digital to digital (supports ToSink to coaxial and coaxial to TSLink). Note: This converter supports digital simulation does not support analog to digital. 3. Support volume adjustment, built-in hi-fi amplifier chip, L / R and 3.5mm output, can drive 16 ~ 150 ohm impedance headphone / sound. It supports volume control and Volume control knob Only used to adjust the volume of the headphone and RCA , not coaxial or sink. 4. "Plug and Play", coaxial cable, no need to install additional programs, plug and play (note: this converter does not support 5.1ch such as Dalby and DTS; Set the audio output in PCM or LPCM use; PRO and SLIM cannot use this converter). 5. Use the volume knob to achieve 192kHz sampling rate, which can adjust the volume of the RCA L / 3.5mm audio output for easy R + use (note: DoSink or coaxial audio output is not can control). It currently supports sample rates of 32, 44.1, 48, 96 and 192KHz, as well as 24-bit S / PDIF input bitstreams on the left and right channels. Specifications: Type: Audio adapter / converter Bit rate: 16-24 bit Output impedance: 16-300 ohm Operating voltage: 5V Weight: 124g Note: 1. There is a power switch on the volume knob. turn on the power switch using the DAC. 2. Set the audio output to PCM / LPCM . 3.For TV, if there is no sound even if you set the audio output to PCM / LPCM , turn on the external speaker of the TV (sounds-speaker setting-HESB / external speaker on). 4. This converter does not support 5.1 channels such as and DTS. 5. Pro and Slim cannot use this converter because they do not have a fiber output interface. colour: black Material: metal size: 6.1x5.7x2cm Package Contents: 1 x Audio Converter 1 x Conversion Cable Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.