digital alarm clocks have copper but analog clocks depend on who made it
Analogue Alarm Clock.
Wind up alarm clocks have a switch on the back to turn the alarm off. A wind up alarm clock does not have a snooze button like most digital alarm clocks.
Information on digital alarm clocks can be found on multiple websites that sell them including Amazon, Ebay, Walmart, Target, Best Buy, and many many others.
Check out the related link below on how an alarm clock works .
One can purchase a digital alarm clock with a radio from many stores. Walmart, Brookstone, Best Buy, Bed Bath & Beyond, and Target sell digital alarm clocks with radios.
Brookstone sells self-setting alarm clocks, self-setting alarm clocks with radios, and LCD display alarm clocks with larger numbers. They also sell innovative alarm clocks such as the Tocky Rolling Alarm Clock.
Plastic alarm clocks are made of plastic.
Alarm clocks are useful to keep people on track. Uses for alarm clocks or timers - waking up people, used for cooking.
Inexpensive digital alarm clock radios can be purchased at many different places however a very good place to check would be a local Wal Mart store where a digital alarm clocks can be purchased for a variety of prices based on personal preference.
digital clocks were made in 1956 the digital clock was invented in 1956, it is the opposite to analogue.