An alarm clock is a device used for waking up a person at an exact given time. It consists of a regular clock (mechanic or digital) and an alarm that goes off at a preset time. The alarm can be made to go off again after a few more minutes or turned off immediately by pressing a switch or a button.
Types Of Alarm Clocks
Kinds of Alarm Clocks include the following:
Regular
A regular alarm clock is a simple sound alarm that beeps, shrieks, rings, or buzzes at the preset time.
It gives off a sound loud enough to wake a sleeping person.
Vibrating
A vibrating alarm clock has a sound alarm and a vibrating function that give off a more alerting alarm.
The vibrating function can be used as a silent alarm; it wakes up a person through mere vibrations.
It is especially useful for the deaf.
Choosing Alarm Clocks (Buying Tips)
Off button or switch: Choose an alarm clock with the off button located at the back to prevent you from shutting it off easily after it sounds the alarm.
Sound: Choose an alarm clock that gives off a sound as loud as a ringing telephone. Do not get one that is loud enough to damage your ears or disturb the whole neighborhood.
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