I need to keep my cell phone off at work (although sometimes I leave it on vibrate if I'm expecting an important call). A few people had cell phones when I got out of high school, but mostly just car phones if anything. Lots of places make cell phone use forbidden; in school, movies,etc. Well it looks like a cellphone ring tone has been created to get past this issue. It's based on an invention called the Mosquito, developed last year by a Welsh security company. The ring emits noise at such a high pitch that most adults aren't able to hear it, just kids? I can hear it can you?
2 days ago