Youngsters Fight Policy With Ultrasonic Technology

From the time that the mobile phone craze was ignited and caught fire across the world, teachers and employers have demanded that the younger crowd keep these devices out of sight. It has become such a problem in some cases that students and employees have been reprimanded and discouraged from using mobile phones.
But for safety and in emergencies, mobile phones can mean the difference between life and death. Although this is usually just an argument for most students to keep their mobile phones for texting others, it is still valid in dire circumstance.
Technology Bridges the Gap between Unfair Policies and Mobile Phones
Technology has produced an ultrasonic ringtone for mobile phones, in which are only audible by the younger crowds. As most teachers are more mature in age, they are almost always incapable of hearing ultrasonic sounds.
The technology works based on the fact that as adults mature, their hearing steadily declines. This condition is formally referred to as presbycusis. As time goes on, the ability to hear high pitched frequencies decreases. This means that a younger teenager or adult may hear a high frequency that other adults can't.
The technology is perfect for the classroom, where the environment is less noisy in […]

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