Before I review the product performance I noticed some reviews about the Beam mentioned that the lightning adapter for iPhone was missing. I had thought the same thing but discovered it was cleverly hidden within the device. When you pull out the charger end you will see, underneath the cord, what appears to be a micro usb port. However, if you plug the end of the charger into it and then pull up, out comes the lighting adapter and you're ready to charge your iPhone. I also noticed the location is revealed in the user guide provided. I know its hard for us guys to sometimes think that we know how everything works, especially when it comes to technology, but maybe taking the time to look at a user guide every once in a while would be helpful.
Now about the product itself and the performance. I really like the thin design, makes carrying it around easier than some of the thick heavy stick battery options I've used in the past. The design of the cord leaves a bit to be desired, It's kind of hard to pull out sometimes, but I do appreciate the commitment to making this device as compact as possible. It would be nice if it were a bit longer so i don't have to hold the battery whilst trying to use my phone. The charge time is a bit long, so I suggest just doing it overnight and in the morning it will be ready to go. If you're looking for an inexpensive battery pack that is light and convenient to carry i think this is a great option.