This power bank is extremely supper. I am using the same power bank since six months. Product quantity is same when l have buyed it and now also it is same. As it is 10000 mAh it is comfortable to carry with us in traveling time also. I am using oppo f7 mobile present. Using this power bank l can charge my mobile completely for two times which is extremely useful to me while l am traveling. It weights as much as a mobile only it doesnot have much weight also which helps me to carry to any where. And using this power bank my mobile gets charged a little faster compared to any other charging facilities. At the same time we can charge two mobiles at a time as it has the two power points. I suggest every one that if you want a quality product then go with this.