replacing batteries is not easy
I know designing a cover for twine is tricky, but the current cover is almost impossible to get off to replace the batteries. I had to find something to brace the twine on while I carefully held the flexible cover and slowly pulled it down. While this might be acceptable for a device with a one year or more battery life, my batteries lasted two months (yes, I have it on fast). Some redesign is needed (and then please send us bleeding edge folks the redesigned covers)
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