This is a holder for the remote that comes with Beastron remote controlled outlets. The back has cutouts to fit #8 screws so they sit flush. The sides don't come up all the way, so you can grab the remote more easily. 

Print upright and you won't need any supports.

I use remote outlets in my woodshop. I want to be able to hit the shop lights right as I walk in, and then grab the remote to turn the vac on and off as needed. Sometimes I also just want the lights.