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This is the MOST AMAZING portable power solution on the market today! I'm so happy I purchased them to use with my GoPro cameras and portable devices. You will not be disappointed. The product holds the greatest charge in the smallest form factor. It's light, rugged, and has a great feel to it. It's easy to pocket and tether to any device. The high amp out is REALLY NICE for fast charging!
I would recommend this to a friend