I wanted a wireless clock because of my cat son he demolished all in its path. This alarm clock does its job and I appreciate the time by radio wave automatic setting. Therefore works on batteries, supplied. Level space is rather small so no worries, it goes everywhere. However it loses a star for two reasons: The manufacturing quality is poor for the price. It looks like a child's toy when it was in hand. The other reason is that if your angle of view of the alarm clock is down, impossible to read the time. Let me explain: My bedside cabinet is above my bed (about 10cm) so when I'm sleeping position, my angle is below the alarm, and from there, impossible to read the Time for screen technology is time ... So I have to correct myself a little time to read. So it's not terrible. For the rest it goes. To see if the product lasts over time.
