http://digbig.com/4jend
Last year, a Welsh security company developed the 17-kilohertz buzz to help shopkeepers disperse youngsters loitering in front of their stores. Mr Howard Stapleton, the inventor of the "Mosquito", claims the high-frequency pulsing sound can be heard by most people younger than 20 and almost no one older than 30. Realising the commercial possibilities in the unintended use of the blip, Mr Stapleton's company has quickly produced it's own official version of the ringtone which they are calling the "the authentic Mosquito ring tone". If you're under 20 (or over 20 with very good hearing), you can listen to the blip here. (Hint: in your Windows Media Player, set the option bar to visualisations > bars and waves > bars and at least if you can't hear the sound, you'll be able to see it.) [Brief]
