My esteemed colleague across the water Dr. James Frankel, flagged up an interesting story from the NY Times which featured a mobile with a ring tone of such high frequency that people over the age of 30 were unlikely to hear it. This way young owners of the phone could get away with having their phone on in class or way past their bedtime.

As I was reading the article, a colleague, sitting near me but facing another direction asked, “can you hear a high pitched noise?” I’m too much of a gentleman to reveal her age. Suffice it to say I was impressed by her range!

See how you get on: ringtone

I was surprised that I could hear it as I tend to use the car as my main hi-fi and pump up the volume.

Categories: Mobile, ScotLearnFest07