Product of very good quality which the magnet is much more powerful than that of the magnetic cable (another brand) I had previously purchased on Amazon as well.
The magnet sticks very well and recharge my Xperia Z3 compact is at least as fast as with the USB plug, thus avoiding opening the sealing flap.
My only concern was to resize my gel protective cover for the aperture size was too narrow for this adapter which is relatively wide and is embedded over the entire magnetic receptacle Xperia.
Icing on the cake: the red charging light to turn green when the battery is full.
In summary, very good product ideal for Xperia with a magnetic charging connector.