Great little clock
As already mentioned in a previous review, the instructions could be better. That said, it doesn't take long to work it out, after all, there's only 3 buttons - how difficult can it be?
Another reviewer complained about taking off the back with a screwdriver - this is misleading - no tools are required and the back simply pulls off with a little twist.
My son loves it. It tells the time (which can be seen at night as it lights up when moved), has an alarm and tells the temperature - exactly as the description tells you. You can also set it to speak the time. For less that 4 quid you can't go wrong...and it won't lose the time in a power cut.