4K HDMI Multiviewer Switch 4x1 with PIP, PORTTA Quad Multi Viewer Seamless Switcher 4 in 1 Out with Toslink, 3.5mm Audio Output Support 4K 30Hz, 6 Viewing Modes, Downscaler, Compatible with PS4 Xbox

I bought this to view 4 screens at once on my projector so when my friends come round we can all watch the sports we want to, so basically everyone gets a 50 inch screen. It's a good quality build, feels solid and not flimsy. I had no issues setting up, just plug in and it was good to go with each plugged in device displaying clearly with no problems. You can also use to just switch between devices in full screen and there is no lag in the switch just an immediate picture from the next device. Audio is from my soundbar which is connected to the projector earc and there is no issues with delays and audio quality is unaffected. It comes with a power supply which I use with it. It can output to two devices, so if you have a second TV, monitor or projector to output to, it can do that also. The remote control is the only thing that's potentially a bit annoying as you need to be able to point directly at the switcher but doesn't effect me in my setup. Also the remote is on the same ir channel as some devices like light switches which use remotes and set top boxes, so be away you may experience some frustration with lights going off or channels changing.

Small compact multi viewer device with a lot of functions to view up to 4 different screens at once on two different screensI installed two Roku devices a Amazon stick and a manhattan Freeview receiver connected it on finding out when I used the remote on the Freeview receiver it also changes views on the multi viewer when annoying as the both now have to be away from one another and the same with the multi viewer remote this was a device I was trying out to see if it gave me what I wanted before looking at the 4K model also. Would be good if you had a ir receiver for when installed in cupboards using the remote to change modes or modify pictures and audio takes some getting use to especially when trying to move your for example picture screen 2 so it becomes screen one when using modifyThe multi viewer also has a separate audio connections so it can link to my external speakers with a toslink or audio , overall nice bit of kit if you want multi views on a large screen

Worked for about a month.. Now I've got no sound and it keeps tripping