If you want an inexpensive solution and don’t mind a bit of a project than an Arduino with WiFi and a $12 RF chip can do the trick. My projector screen (and projector control, actually) is run from a single Arduino with a SmartThings ZigBee Prototyping Shield (now discontinued). It was a fun project and has been working flawlessly for … years.
Search the Forum for ESP8266. This is a miniature system-on-chip that contains WiFi and likely sufficient Arduino capabilities for this project.
I presume there are some commercial “out of the box” low frequency RF alternatives; but I can’t recall any particular device that has been discussed here along with sample code, etc… Let’s see who else chimes in.