Cheap price on this 15.6" portable monitor with the coupon code that you can redeem under the price.
It has an IPS panel 1920x1080 resolution, 60Hz refresh rate, VESA mounting, inbuilt kickstand, protective case and dual speakers. For connectivity there's two USB-C ports for display and power, PD passthrough charging, HDMI, USB and headphone jack.
do people buy these for 2nd laptop screen or mobile phone?