A New Ring Tone Teachers Can't Hear

CBSNews reports:

Students are using a new ring tone to receive messages in class — and many teachers can't even hear the ring.

Some students are downloading a ring tone off the Internet that is too high-pitched to be heard by most adults. With it, high schoolers can receive text message alerts on their cell phones without the teacher knowing.

Try out the ringtone yourself, here. Can you hear it?

Tags: mobile, ringtone