In micrograph (as written in the product description) is a charger with a voltage of 5V and a 1000mAh charge current (or 1Ah).
The charger received voltage is 5V and a 700mAh charging current (or 0,7Ah). Nevertheless, this is what is written on the charger ... but that is not the case, given the slow charging: about 8 hours to recharge after 75%.
To my phone (battery 3100 mAh or 3,1Ah) the product is not suitable.
Little advice to the seller: when the sale of a magazine well highlight the charging voltage V (Volt) and the unit charge in mAh (milliampere-hour).
Conclusion: I do not advise buying this charger.