@zackwhittaker @taylorlorenz I wonder if people know: As soon as anyone lands in Japan, their smartphone will not be able to take a photo without the shutter sound. It is built in for all smartphones in accordance with Japanese laws against perverts spying on women with their phones with the invention of cameras on phones.
I wonder if similar things can be done to require these kind of glasses to emit a loud shutter sound or something to alert people.