A-tech 3x1 is a hdmi switch with audio Amplifier and optical output.this hdmi switcher support 4K,PIP,MHL ,heavy bass,integrating Amplifier function

4K HDMI switcher 3x1 This HDMI Switch 3x1 allows 3HDMI sources to be switched to a single display terminal by remote control or buttons on switch.support picture-in picture (pip)viedeo preview.which make it simple and intuitive to switch . the HDMI 1 input support HDMI/MHL dual-mode.available for the equipment with MHL interface.the resolution of this hdmi switcher is 3840x2160/30HZ. In addition,the switcher can strip audio signal from HDMI signal ,output via optical fiber ,coaxial,and 3.5mm headphone.Support heavy bass,integrating Amplifer,let users enjoy the excellent audio experience.
Description
Audio power Amplifier:signal sources are from 3HDMI input ,stereo audio input,and optical audio inout .the output include two channels(15W max power for each)of the speaker and the heavy bass output.

Optical and coaxial audio output: the two audio signals stripped from HDMI input sources,support 5.1 audio channel.
HDMI switch: upport 3HDMI sources to be switched to a signal display terminal,the MHL/HDMI1 input support both hdmi input and MHL input ,HDMI2 and HDMI3 support HDMI input only
Features
Support HDMI1.4b
Support 3D video format
Support the resolution up to 3840x2160/30Hz
Support 3.2Gbps data rate for tmds clock up to 30w
Support heavy bass
With phone both input and output ,which support 2.1 audio channel
With optical and coaxial audio inputs ,which support 5.1 audio channel
Optical audio inout.
Picture-in picture(PiP) function
Switched seamlessly,Switch one inout source to the other quickly
Support HDMI/MHL dual-mode inout
12V/5A power supply