Is it not already the expensive option when a cheap microphone+chip can be embedded in a light as The Clapper? https://en.wikipedia.org/wiki/The_Clapper https:/

Is it not already the expensive option when a cheap microphone+chip can be embedded in a light as The Clapper? https://en.wikipedia.org/wiki/The_Clapper https://en.wikipedia.org/wiki/The_Clapper When you can have a smartbulb and a smartphone app, if you already have a smartphone and wifi access point? When you can buy a wireless doorbell system for $12 which is a free-floating button and triggers a mains powered doorbell remotely? https://www.amazon.com/wireless-doorbell/s?k=wireless+doorbell https://www.amazon.com/wireless-doorbell/s?k=wireless+doorbe... All of that is cheaper than buying, and paying a qualified electrician to run, 10m of cable to a light switch and then plaster/box/paint over it.