Holder for Nexa Remote Switch system.

This is a wall holder for the remote of the Nexa PE-3 (I think that's what's it's called) wireless switch pack. It is for the rounded remote in the pic, older ones are more square, there are also bigger ones with more buttons by the same manufacturer.

It is a wireless system for switching on and off anything connected to a socket, it is sold mostly in Scandinavia and the UK I think. If you have a Clas-Ohlson store nearby then they have it. Usually sold in a pack of 3x switches and a remote.