Jumbo Capacity 20,000 mAh Solar Charger can charge any cell phone on this planet 200% plus,and any tablet 100% and more. This super packed Solar charger has jumbo size battery to withstand several times recharge of most devices. Example: 20,000 mAh is equal to 5 X iPhone Max battery capacity Its double layered Solar panel with ultra senstive skin captures evry availalbe light source and turns it into stored power that can be used. It does this continuesly automatically so you do not have to remember to recharge the powerbank. It is also waterproof and shock proof so if acidently drop in water or on a pavment it will not stop working. It has power dual LED beams that throws light 300 ft very usefull in travel and camping. A built in compass when there is no device or direction or google map this compass will guide you to the right direction that you should take by pointing to North, East, West, South. The carbiner hook included that attaches to any bag makes it convienient and handy. It weighs under 10oz and has rugged construction. This is a one charger that meets all charging demands for your smart devices.