4 port HDMI switcher with Audio output LinkS 4 in 1 out HDMI Switch 1080P/HDMI 1.4a Supports 3D/4KX2K with IR Wireless Remote and Coaxial, 3.5mm Stereo and Toslink Audio Out Output This Switcher allows 4 HDMI ports to be switched to a single display terminal with 3 audio out and has a build-in signal amplifier (HDMI Repeater or Extender). It comes with 2 digital audio outputs ( Toslink and Coaxial ) and 1 3.5 mm stereo output. Output signals identical to the input signal and transmit image and audio simultaneously without any loss in quality supports manual switching, using the supplied IR wireless remote or the button on the device.Travel friendly. Metal case with air vents on the bottom and 24K gold plated shielding connectors, which can ensure the product have best thermal diffusivity and reduce the interference to HDMI signal. Pure hardware and LED indicators. Only takes a few seconds to install Support sharp high resolution up to 1080P@60Hz, Full 3D. Support audio format: DTS-HD/Dolby-trueHD/DTS/Dolby-AC3/DSD. Essentially all available audio options are supported. Support audio and video synchronous switch. Support deep color up to 36 bit. Support max band rate up to 2.25Gbps. Support bandwidth up to 225MHz. which will bring you exquisite image and vivid world Apply to all the HDMI devices in the market such as digital HDTV, plasma displayers, LCD monitor, STB, PC, PS4, DLP,, Xbox, DVD players, Blu-ray, digital cameras, audio and video receiver, practical video, connection between projector systems, signal amplification. It is perfect for the projector factory, conference presentation, school or corporate training environments.The remote only works from 1-2 feet away,and the receiver must be aligned when use the remote. This item is switcher, not split.