A 9v battery backup also preserves the time and runs the alarm so in the case of a power failure it will still wake you up.

There is a battery backup that will keep the clock on if there's a power failure.

Is a great alarm clock - good buzzer, able to dim numerals, easy to set time, battery back-up in case of power failure, large numbers can read with glasses off- no issues after several monthsExactly what I was wanting

We had power failure a few nights ago and the clock went

Easy to read and easy to reset after power failures.

Better to know now rather than after 30 days or a power failure.

Takes a 9v battery as a backup in case of power failure.

Easy to program and reset after a power failure.

After 8 mo.s, works as it should.

Humming sound as soon as it was plugged in, not good if you don't want noise while trying to sleep

I tried to return it since it is not working as it should, but guess what?

Sometimes my phone alarm plots against me by not ringing, making me miss class or work but this alarm has never failed as of yet.

Good as it's either a plug in or it can run on batteries

Other than that, I still like it, and I'd still recommend it, as long as you have both hands free to fiddle with it.

You have to reach around the alarm clock to set the time and alarm, as well as to turn the alarm on/off