Das Gerät funktioniert wie es soll.The device works as intended. The switch button is a bit stiff. The instruction manual isn't adequate for beginners. If the amperage is too low, it won't charge at all, and the battery will drain even more. This information is missing from the very minimalist instruction manual.
The zipper of the very thin pouch is broken during the second use.
The zipper on the very thin case broke after the second use.
