I am using the power bank from last 2 years and its too good.Seeing these type of products I understand how techonolgy is getting advanced day by day.
As today we are in android land.If you are an android user you should have power bank .Its important to everyone specially for girls safety.
If I travel outside I always keep in mind to have power bank with me.when it comes to my safety so as my phone should always be on or in active mode^.
Very nice product to buy go for it.!