Handheld scanner with an error (apparently, no configuration and no IP address available?). Is the device running an embedded version of Linux with framebuffer to display graphics?
In this shop, clients are allowed to pick a scanner when they enter, scan goods by themselves and just pay in the end (with control sometimes). The whole rack was unavailable for customers but only this device seemed faulty.
(I don't believe the nirvana is to handle such device - something the woman seems to express in the background)
(Sorry for the low quality of the photo: I was trying to keep an eye on my 2-years-old son + the basket at the same time)