I use Logitech media server, installed on a NAS, to stream music. I like using my android tablet to control the server. And I would like to always see what track is playing. But I don't like to keep the tablet's screen on in the background for long periods of time, in order to conserve the battery. I could buy another, cheap, tablet and keep it always plugged in to the mains, but I would prefer that it wouldn't have a battery (out of concerns that it might overheat or explode).
So, is there a cheap, small device with a screen and wifi, that doesn't have a battery and runs connected to the mains? Something like a mounted wall display, I guess.