if they can build an internet connected coffee maker with mic and camera for 60 bucks that's freakin' amazing!
You could buy a wifi module, a basic camera and microphone for less than a few dollars
I'm pretty sure they'd be happy to swallow the loss when building a one-off device to specifically target you.
Would it include a cell radio and SIM card? Or are they hoping for an open WiFi network in range?
$17.60 for the internet connected microphone and camera (see parts list below),
list of coffee machines for under ($60-$18):
https://www.google.com/search?q=coffee+machine+under+%2442
m5stack camera: $7.10 https://shop.m5stack.com/products/unit-cam-wi-fi-camera-ov26...
m5 stack microphone: $3.50 https://shop.m5stack.com/products/pdm-microphone-unit-spm142...
m5stack atom light S3 controller: $7.50 https://shop.m5stack.com/products/atom-lite-esp32-developmen...