One has to insert two AAA batteries, which should hold in about a year.
The initial settings are hidden at the back of the battery cover. To set the clock in motion, you have to press a reset button, which is hardly gent with your fingers - you need a pen. Then adjust either the thermometer (optional C or F), or the weekday (which does not appear when choosing the thermometer). The clock looks for then the radio link itself, which works after a few minutes because you have to do anything more.
The alarm clock to provide a front right with this up and down keys. Unfortunately you can choose only eineen time within 24 hours - each watch can, let alone smart phones where you can even choose at the local alarm clocks that you do not ring, for example, at the weekend.
So This alarm with increasing volume at a time within 24 hours. If you press the large snooze button, the game every 5 minutes repeatedly. If you leave by ringing the alarm clock one minute, he then switches itself off - and ringing within 24 hours. Or you can switch off with the switch on the right side - with difficulty, you have the alarm if necessary, take into their own hands - completely. But then you have to think before bedtime it to re-enable it. It says in the description that the clock is equipped with a "minicomputer", I would because intelligent solutions require - at least also a convenient off possible except the snooze button (but perhaps one wants to prevent, so the Aufgeweckte does not fall asleep again .. .).
The snooze button is both a light switch.
The support back folds down the alarm clock is very (or even?) Small and handy.
The thermometer differs from another thermometer, which I used for testing purposes in the same room, at about 0.5 ° from.
The alarm clock is a total of a nice goodie, but no longer.