not very intuitive but effective

I was seduced by this headset for my teenager as it not only connects via Bluetooth (my son has a Yezz) but can also play music directly from a micro sd card (32giga for my son included) and capture fm.
Service appreciated by the seller: sending a notice by email in French as the one included in the box was written in small print.
However, my son did not find the use of the helmet so intuitive that. Indeed, the instructions had to be translated in an automatic way and includes French mistakes especially on the name of the buttons (utility of legend drawing).
We had not seen for example that the mp3 button could sink (for me it was a wheel).
Quick charge, good sound, comfortable
Too bad the same model does not come in black.