I ordered 4 of these. All four arrived unsealed. The batteries were loose in the shipping bag. I do not know whether all 4 somehow popped out of their packages during shipping (they were in a soft plastic padded envelope), or whether I was sent packages that had already been opened and possibly returned. They did not work in the toys I purchased them for (Thomas the Tank Engine musical engine and caboose). I honestly do not know whether it is the batteries that are dead, or if the toys are no longer functional.