Easy to use - power on / off automatically when plug / unplug the USB cable from device.
Capacity - Charges ANY smart phone and tablet and can fill up iPhone 5S 1.75 times, iPhone 6 1.5 times or Samsung Galaxy S6 one full time.
Safety Protection - Supports over-charged, over-discharged, over-voltage, over-current and short circuit protection, more safe to use.
Additional performance - 4 bright LED indicators alert you as to how much capacity you've got left. Each indicator represents 25% of remaining power. Built-in emergency flashlight for dark or low-light environments.
Package includes - 4000 mAh external battery charger, Micro USB data cable, instruction manual.