aaanz bad, the short trip to Barcelona the release fell apart. So the lid from the battery compartment dissolves too easy. have these transported in the pocket, after all, he should be close at hand. I have lost this for the reason. Also with tape there could no longer be addressed. I'm so annoyed that I have discarded everything completely on vacation in the trash !!! If you would send me a new one, I would be happy. Top with replacement battery cover!