Now you can use your Mobile in Schools and colleges without disturbing your teachers because they have become so old that they will not hear the Stealth Ringtones, so play around with your mobiles in your college and have Fun …at your own risk …
There is a list of ringtones of various frequencies available for a free download.. From 10 Khz to 22 Khz..
choose the Frequency according to the age of your teacher..
Experiment with what you can hear and what your parents can’t hear so as to have a rough idea and then implement in your college.
Have a try Free Download Stealth Ringtones Ninjaringtones
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