Simple without anything special, although at first glance it seems good.
Time will tell about the quality, as I have only had it for 10 days.
Attention, it is Chinese and not Spanish.
That's how I got tricked too...
*Update After almost 2 years, sometimes the function flow switch for battery or phone selection does not work well (it gets stuck).
If this continues, it will be returned and I will update...
*Update (2) March 2024
For the past week, water has been leaking from the function flow switch.
It will be returned to the store where it was purchased and there will be an update...
*Update (3) The store sent it to the company for replacement and a new one was given after 20 days, as they said there was a factory defect.
However, since I couldn't be without a battery for so many days, another company's product was purchased and the new one has not been tested...
