Unfortunately, the 220 V transformer is an American model with three flat pins that do not suit the French standard, but may be one day I would go to the United States. Fortunately I have other USB chargers suitable.
In practice, the speakers simply glued to the plastic frame peels off after three days of use where I simply transported by bicycle in my backpack. The dismantling has proved very difficult because everything is embedded in glue. I still managed to restore the enclosure. Consumption, consumption, this is not made to be repaired!