Tursion High Quality Power Bank 4000mAh Portable Power Station Solar Charger Simply charge this Power / Solar Pack from your PC or Wall Adapter using the provided USB Cable until it is full; then simply charge your device whenever you need power. High-capacity, rechargeable Lithium-Ion Polymer 4000mah battery pack increases energy efficiency. Solar Panel: 195ma 6V. Great for traveling and long flight Compact size allow easily carry in bags, pant pockets, or shirt pocket LED battery meter displays remaining power level.