A microphone on the outside of the door and a speaker inside allowed an occupant to interrogate a visitor, while an alarm could alert police via radio. Closed-circuit television, invented during ...

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As convenient as it might be to use your phone as an alarm clock, standalone alarm clocks come with all kinds of features that can make waking up — or even going to sleep — a little less painful.

This is when an alarm clock proves to be extremely useful. An alarm clock is a device specifically designed to help wake up at a set time every single day. It becomes an indispensable resource for ...

The Hatch sunrise alarm clock and noise machine stopped me from hitting 'snooze' and turned me into an early riser.

Here's everything you need to know about the latest Nintendo invention. The Nintendo Alarmo is far more than just a typical alarm clock. It brings the magic of Nintendo directly to your bedside ...