Handy gadget

This is a really handy little gadget and I've used it in 7 rooms today - I wonder if anyone knows what it is?
Nothing much to report - usual Friday of shopping, washing, cleaning.
Feeling lots of emotions about Russia's invasion of Ukraine. Anger, sadness, frustration. Pakistan has announced support for Russia! Imran Khan - grrrr! 
Perhaps, since Pakistan supports Russia's aggression, Russia will take over the foreign aid payments we send to Pakistan. I strongly believe that any countries supporting Russia should have sanctions imposed on them as well and all aid stopped from the UK. Go beg it from your warmongering friends! I'm sure Putin will stump up before his country goes bankrupt.
Why, when I think of Putin does the name Rasputin the mad monk keep popping in my head?
Rant over. Sorry folks but needed to get it off my chest.