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Title: Works ok for a while
Review: This is a fun device. However, if you want to use it frequently, I don't recommend it. Changing times to anything accurate is hard, you either go too far one direction or the other. I have two of them and wish I had something where I can accurately set the time I want. One of them started being quite touchy and when I tried to add, say, 10 seconds, it goes 20-30 seconds, then I try to go back and lower the time and then it is now 20-30 seconds less. Setting the right time is pretty hard.
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