A portable solar energy power bank will be a great help to deal with dead batteries when you are in the open air. Designed for cellphone， MP3， MP4， console， tablet PC， camera， audio recorder， navigator and other digital products with 5V voltage， our 30000mA Solar Energy Power Bank with Dual USB Portallows you to enjoy uninterrupted and smooth entertainment anytime. 30000mAh capacity is enough for daily use and it is rechargeable from the USB port or absorbing sunlight. Its high quality polycrystalline silicon solar panel guarantees long-lasting power storage so that you can feel assured to buy one! Take action!                                    Features             Multifunctional solar energy power bank which adopts superior polycrystalline silicon solar panels， great for outdoor use<br> Tested and excellent quality ensured<br> 30000mAh， rechargeable from the dual USB port or absorbing sunlight<br> Perfect power supply for business trip， travel， field work and so on<br> Fit for cellphone， MP3， MP4， console， tablet PC， camera， audio recorder， navigator and other digital products with 5V voltage<br> Compact and portable design， convenient to carry <br>                                                            Specifications             Quantity     1    <br> Material     Aluminum Alloy & Polycrystalline Silicon Solar Panels    <br> Colour     Black    <br> Capacity     30000mAh    <br> Power     0.7W    <br> Input Voltage     DC 5.0V    <br> Input Current     DC 1A    <br> Output Voltage     DC 5.0V    <br> Output Current     DC 1A/2.1A    <br> Dimensions     (5.00 x 2.99 x 0.83)" / (12.7 x 7.6 x 2.1)cm (L x W x H)    <br> Weight     9.24oz / 262g     <br>                                                             Package Includes            1 x Power Bank<br>1 x USB Cable<br>