1、HD Multimedia Interface: Supports 1 HD Multimedia Interface signal input and 1 HD Multimedia Interface signal output. It can support sound extraction and sound embedding function (sound embedding function means that the external sound signal is input from optical fiber, coaxial, left and right channels, and the sound signal is output from the HD Multimedia Interface output port). Through the machine or the remote control on the control knob, you can realize the sound signal extraction and embedding function, so as to realize the multi purpose machine. 2、Extraction and Embedding: In the sound extraction state, it supports 3 kinds of EDID settings: 0CH, 1CH and PASS. In the sound embedding state, through the switching button, it can realize digital sound optical signal, coaxial signal and analog sound stereo signal embedding. In addition, the sound interface input and output share the same design, which reduces the number of sound terminals and makes the product become more concise and easy to use. 3、4K HD: Supports 4K HD Multimedia Interface input and output, and supports ARC sound return function. Let your HD Multimedia Interface and sound devices connect with each other as you wish, making your sound and video equipment more convenient and comfortable to use. 4、Supported Formats: In the sound embedded state, the digital sound (optical and coaxial) input can support up to 96KHz sound sampling rate (LPCM format), and also supports for DOBLY AC3 and DTS sound format input. Analog sound (left and right channel), maximum support for 2V P‑P analog signal input. 5、ARC Function: Support ARC sound return function, ARC sound return, the sound can be from the digital sound channel (optical, coaxial), and analog sound channel (left and right channel) output at the same time (analog channel output can only support LPCM0 format sound return). 1 x Sound Extraction Separator1 x Remote Control1 x Power Adapter Item Type: HD Multimedia Interface Embedded ExtractorMaterial: MetalResolution Format: 24/50/60fs, 1080P, 1080i, 720p, 576p, 576i, 480P, 480i, 24/30/2160PVideo Color Format: 24/30/36bit, 1080P, 1080i, 720p, 576p, 576i, 480P, 480i, 24bit, 2160PHD Multimedia Interface Supported Sound Formats: DTS HD, for Dolby TrueHD, LPCM 7.1, DTS, for Dolby AC3 DSDDigital Sound Output Format: PCM 2.0, for Dolby AC3, DTSSound Output Sampling Frequency: 32KHz, 44.1KHz, 48KHz, 88.2KHz, 96KHz, 176.4KHz, 192KHzMaximum Digital Sound Transmission Bandwidth (output): 25MHzAnalog Sound Input and Output Levels: 2V p‑pAnalog Sound Frequency Range: 70Hz to 16KHzMaximum Transmission Bandwidth: 300MHzInput Output DDC Signal: 5V p‑p (TTL)Power Adapter Specification: AC 100‑240V DC 5V 1ARemote Control Battery: CR2025 Button Battery (Shipped Without Battery)