192KHz DAC converter: Converts coaxial / toslink / optical to analog L / R sound with 3.5 mm audio output. It can be connected to the headphones and headphone amplifier.Bluetooth 5.0 reception function: CSR Bluetooth 5.0 version lossless transmission technology. Built-in Bluetooth receiver module, can be connected to mobile devices such as tablets, mobile phones and other Bluetooth devices.Excellent IR remote control: With the IR remote control, you can easily adjust the volume, select Koaxial or Toslink input / Mute / Power On or Off.Douder Digital 2-channel LPCM or PCM audio output. Dolby, DTS or other surround sound signals are not supported. (Note: 5.1 channels are not compatible. Some TV devices may have PCM / LPCM as the default setting. If not, set the PCM or LPCM setting as follows: Setup - Audio - Audio format) .192 KHz 24-bit sampling speed gives Electromagnetic noise-free transmission, supports sampling rates of 32, 44.1, 48, 96 and 192 kHz and 24-bit SPDIF input bit to the left and right channel. Comes with aluminum alloy, without signal disturbances, compatible with HDTV, PS3, PS4, HD DVD, Sky HD, Blu-ray, home theater system, AV amplifier etc. powered by regular USB charger 5V 1a (not included) USB charging cable is included.