The cable storage, one can do without it for sure, but it's convenient and it adds to the compactness of the small object.
Meets photo, comes with a USB charger and instructions (not very well translated into French I must say)
They advise to load fully before first use, saying that the red light will extend to the end of the load, but it never happened when I put it to charge for hours ... Apart it's nothing to say, I will modify the comment if problems are found with use.