LARGE CAPACITY. Built in Eco-friendly 20000mAh Li-Polymer battery, work with all iPhone/iPad/Tablets, other cell phones and electronic devices. Automatically adjust the output power to deliver the optimal charging current keep your devices from overcharging, over-current, over-voltage and short circuit. Ideal choice for hiking, camping trips or other outdoor activities.
Portable & User-Friendly. Handy compact solar charger, holded like a smart phone. You can put it in backpack or even your pocket while charging your phone.