This doesn’t seem like too bad of a product. It isn’t extremely big and I am guessing it has enough juice to give you at least another few hours of use. I could use something like this every now and then. Some days I end up using my phone way too much and by lunch time I have already used half my battery life. This would be a great thing to have for those days. This is also a nice thing for anyone without a car charger that might go camping or do some other activity where you may be away from regular power sources for a few days.