It's the same in the UK - indoor public spaces have been smoke free since 2007. This is proposing removing public outdoor smoking spaces at bars and restaurants.
I saw a similar device in a friends new build 3-4 years ago. It used the energy from you pressing the switch to transmit to the fitting.
My favourite history. Pat Grace's Famous Fried Chicken: https://open.spotify.com/episode/0uFbJFPRxd7Or4EiJ1V0jy
Made my own synth to fill a specific gap on my keyboard
YouTube Video
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003 is a 16 voice polyphonic synth I made in 2021. It has everything I needed!
Based on Teensy 4.0 and the pjrc audio library.
https://github.com/ChrisBall/003_Synth
Afraid not, but it'll be well beyond audio frequencies, likely 1Msps+
It is a beast! I used it to make a 16 voice polyphonic subtractive synth.