This power bank is designed for GoPro HERO camera users to solve the issue of short camera battery endurance time. With high capacity of 10,000mAh, it can fully charge a GoPro battery six times. You therefore do not need to carry many backup batteries in your backpack when skiing, swimming and traveling. The extra USB-A port allows you to charge other devices simultaneously, allowing you to share it with friends anywhere. The overall shape features a very strong outdoor style. The twill non-slip design element on the GoPro battery cap makes the charging slot easier to open.