What can I say about this charger, other than it's without a doubt the best fast-charger on the market. And if you can find deals like I did, the price is more than fair for what you're getting....The positives:1. Everything is completely built in to the unit, so no separate wires or cables to keep track of or lose, no switching out different ones....its an all-in-one unit, everything you need.2. It charges VERY fast (18w), as fast as my "super-fast charging" Samsung Quickcharge wall plug, but you get the benefit of it being portable.3. It has the wall prongs built-in also, so you just flip them down, plug it into the wall, and when you're done, flip them back up flush.4. It has both charging parts, for android AND Apple, so even though I'm an android person, if a friend of mine has an I-phone or other Apple product, not only can I charge his product also, but because is 10,500 capacity, I can charge both our products at the same time.5. Its sleep, attractive looking, and the build quality is top notch. You can feel it just holding it in your hand and when you push the buttons and pull the parts in and out.6. It comes with a USB port also! So the couple products I have that occasionally need charging that require USB plugs, this unit is already set up for that too, so once again, no need to switch out or make sure you have all the extra cables that just get tangled and crate a message.The negatives:NOTHING!!!!Trust me, purchase this unit. Its the perfect all-in-one, super fast charging, wall plug-in unit available. I have yet to come across another brand that has thought out the construction of the perfect power bank ??