Amazon カスタマー 2 It came with a manual that didn’t explain even the basics. No explanation of where to put the batteries; how to turn ON /OFF; how to connect to electric power; etc.After more than a week of using (just watching it), the alarm suddenly started sounding while I was on an international phone call. I had no idea what the alarm was sounding for, and I was unable to find any switch that would stop it. The manual explains how to set the alarm, but not how to stop it. Finally, I had to remove the batteries and the power connection. This was the only way I could stop it.It’s still lying on my table waiting for me to put the batteries back in and start it again.