In high school, there is no doubt that many kids text during class even when they are repeatedly threatened with the fact that their phones will be confiscated. Even so, many kids continue to use their phones without their teachers knowing. How is this possible? Sometimes when a phone vibrates it is audible enough that the teacher would know, and obviously the ringer can't be on... Or can it?
With TeenBuzz, kids know when they have received a text. The teacher is left completely clueless. I remember in high school constantly hearing a high-pitched ringing noise and looking around to see the smug faces of all my peers. Obviously someone was using their phone, but it was hard to pinpoint who. Most importantly, the teacher remained completely oblivious because their ears' hearing ability was significantly lower than ours. Thank goodness for that, so many kids would have wound in up detention.
As we age, our senses decrease. It's almost as though kids have super-hearing senses. There are many cases where humans, indeed, have super senses. For example, this man named Daniel Kish uses his super-hearing skills to make up for his inability to see.