@ Dedobot re: Xiaomii IR blaster
Another useful thing about the IR blaster is that you can get a software TVBegone app that undetectably turns off TVs in places like GoodGuys or Hardley Normal. I have it on my Samsung Gear 2 Neo watch (yes, there is one of those ancient little buggers still running). Minutes of uproarious fun can be had for those of simple pleasures.