NÖRDIC 4 to 1 HDMI switch with IR remote control allows you to connect 4 HDMI video sources to 1 HDMI monitor / TV / projector. You can easily switch with the IR remote control or the button on the box. 18 Gbps bandwidth with latest HDMI 2.0 specifications. For normal use of the product, always connect the HDMI switch to the power supply. The switch can handle up to 4 HDMI input signals from different video sources to 1 HDMI video signal in output, 1 port digital audio Toslink, 1 analog audio 3.5mm L / R oh 1 port HDMI audio: HDMI output audio and Toslink can handle ARC function but not 3.5mm audio analog. Compatible with HDR10, HDMI2.0b, HDCP2.2 / 1.471.3 / 1.2 / 1.1 Switching between video sources is done with a remote control or a button on the switch. The HDMI Switch supports LPCM 7.1CH, Dolby True-HD, DTS-HD, AC3, DTS, DSD audio formats. But can not decode these audio formats. If your amplifier or soundbar cannot support these audio formats, there will be no sound on your soundbar or amplifier, so set the audio format to HDMI source to PCM / LPCM audio format. NOTE: Does not support Dolby Digital Plus audio. The NÖRDIC HDMI Switch supports most devices with a standard HDMI interface. Input compatible with computer, Roku, Xbox 360, Xbox One, PS4 / PS5, Ps4 pro, Blu-Ray DVD, Chromecast, Nintendo Switch, etc. Output compatible with HDTV or full HD TV, projectors, monitors etc. NOTE: HDMI Switch does not make compatible with DVI, do not use HDMI to DVI cable to connect to your projector / monitor. Use AWG26 (19 + 1) standard HDMI 2.0 cable. The product is switched on first, then the HDMI cable is connected NOTE: If ARC does not work, make sure that the ARC function on the TV and remote control is switched on. The remote control can not adjust the volume, just adjust the volume of the audio device. 1xHDMI Switch 1xUSB charger and cable