Review on 🖥️ Z12 Portable Computer Speakers with Full Function Type-C and Mini HDMI for External 1920X1080 HD Display at 60Hz by Clifton Boettcher

As a second monitor, it works great with a laptop when traveling. But I glue the iPhone and only get this screen. And yes, the iPhone and the monitor have separate power supplies. The screen on the iPhone freezes or shows no video until I unplug the backlight cable from the phone. Don't get this if you're hoping to use it with your phone. Otherwise it's great.