Wall Mounted Weather Station Digital Clock

This clock has nearly incomprehensible instructions that were apparently poorly translated from Chinese. Not easy to use. One of the buttons on the back is labeled "wave".It seemed to be working okay for a month or so but it soon stopped receiving the radio signal and started losing time, perhaps one minute per week.Then the real challenge started, trying to get it to the point where it would receive the radio signal again. It proved to be impossible. I think I was following the instructions but they are so inscrutable that I'm not sure. It's currently 40 minutes fast.Another problem for Americans: June 12 is "12/6".One more observation: I was wondering about the blue border on the outside in the pictured model, and whether the pictured clock was exactly the same as mine. But on closer observation I noticed that the pictured clock is in a blue cardboard box!