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Alarm clock. An alarm clock or alarm is a clock that is designed to alert an individual or group of people at a specified time. The primary function of these clocks is to awaken people from their night's sleep or short naps; they can sometimes be used for other reminders as well. Most alarm clocks make sounds; some make light or vibration.
The sleek alarm clock connects to the Hatch Sleep mobile app via Bluetooth. There, you can customize personal sleep and wake up routines. Browse libraries of nature sounds, white noise, and ...
Telechron Alarm Clocks Telechron electric alarm clock. Telechron alarm clocks are particularly popular with collectors. Until about 1940, the overwhelming majority of Telechron alarm clocks had bell alarms. The entire mechanism was enclosed in a bell housing of steel. Atop the clock's coil was a metal strip that vibrated at 60 cycles per second ...
The Shortt–Synchronome clock, an electrical driven pendulum clock designed in 1921, was the first clock to be a more accurate timekeeper than the Earth itself. [167] A succession of innovations and discoveries led to the invention of the modern quartz timer. The vacuum tube oscillator was invented in 1912. [168]
Sonic Bomb Extra Loud Alarm Clock with Bed Shaker. This alarm clock lives up to its name. At 113 dB, it has the decibel level of a rock concert.
If you normally use your phone as an alarm clock, there's a simple solution: Get a traditional alarm clock. We’ll help. We've amassed the top 12 best alarm clocks, from simple no-frills models ...
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