Meet the RGBlink mini+: a smartphone controlled video switcher that lets you switch and stream up to four HDMI video sources. It supports streaming up to 1080p60 video via USB. It comes with PiP and transition effects. You can remote control the device with your computer or the XPOSE mini app for phones and tablets.
The RGBlink mini+ is also compatible with OBS Studio. In addition to 4 HDMI inputs, it also has a USB 3.1 port . You can preview all the video inputs on the TFT color display on the switch.[where to get it]