【Digtal/Analog audio to HDMI embedder inserter】Use external audio from either digital (optical---TOSLINK/SPDIF) or analog (3.5mm/line) sources to replace the audio from an HDMI signal(Note that the original HDMI sound is replaced, not mixed with the original HDMI sound.). Flip a switch and choose which source you’ll hear on your HDMI display without moving cables. Also, you can choose to hear the original HDMI audio through the pass through feature.Note: To ensure the proper transmission of audio, you need to select the corresponding audio input channel. 【High resolution】 Resolution up to 18GBPS 4K@60Hz 4:4:4; also supports 1080p, 720p.Supports the use of DVI to HDMI cables to fuse DVI signals and audio signals into HDMI signals.Note: Only the video signals from the HDMI port or DVI port can be input. The video signals from other ports, such as DP and VGA, do not support the use of conversion cables.When there is no HDMI input signal connected, connecting the HDMI OUT to a monitor will display the original colored lines. This displayed screen serves as a prompt that no HDMI input signal has been detected. 【Audio formats】 The HDMI port will pass through all digital/analog audio such as PCM, LPCM, Dolby and DTS. The optical audio input supports Dolby DTS and PCM. The 3.5mm audio input supports 2 channel stereo audio like PCM.Note: Only the audio output port can be converted, and the audio format cannot be changed. For example, if the 3.5mm port is a two-channel audio input, the audio output via the HDMI port after conversion will still be two-channel.The audio input channels corresponding to the dipswitch positions are as follows: "Line" means the audio uses the 3.5mm port, "Optical" means the audio uses the optical port, and "Pass" means the audio uses the straight-through HDMI port. 【High-level functions】 HDMI2.0 Versions 10bit High Dynamic Range (HDR), DOLBY Vision, HDCP 2.2/1.4 compliant. 【Easy to use】Plug and play, no software installation required. Suitable for a variety of HDMI images and sound need to match. 12 months maintenance service, professional technical team provides 24-hour after-sales support.Note: The USB power cable must be connected to supply power to the extractor. A DC 5V charging head can be used, and fast charging is not supported. Overview:

Use external audio from either digital optical or analog 3.5mm sources to replace the audio from an HDMI signal.
Also, you can choose to hear the original HDMI audio through the pass through feature.

( Note :that the original HDMI sound is replaced, not mixed with the original HDMI sound.)

If you use Optical input audio signal, it supports up to 5.1 channels in Dolby, DTS format.
If you use 3.5mm input audio signal, only 2-channel stereo in PCM format is supported.

Specifications:

Video: 4K@60Hz 4:4:4, 1080p@120Hz, 1080p3D@60Hz,18Gbps, HDMI:2.0B,HDCP: 2.2,HDR, Dolby Vision

Optical audio: PCM 2CH, Dolby Digital 2/5.1CH, DTS 2/5.1CH

3.5mm/line audio: analog stereo 2CH

Inputs: 1x HDMI, 1x 3.5mm, 1x optical

Outputs: 1x HDMI

Package Contents:

1x HDMI 18Gbps audio embedder
1x USB power cable
1x User manual