Either the Alarm Clock:
a much too quiet or loud alarm
a much too dark or bright display (unwanted bedroom lighting)
absolutely cheap / buttons or an unusable key arrangement, thus wrong operation or oversleeping
an absolutely cheap housing
with many alarm clocks the power supply constantly buzzing and they are much too bright
Also well-known brand manufacturers distribute up some useless junk.
This alarm clock is right for me almost everything!
Unfortunately, awakens the snooze only a maximum of 4 times and the snooze time is 5 rather than desired by me 8 minutes.
This alarm can I bedingunslos recommend.