FULLY WATERPROOF AND DUSTPROOF - The Wildtek Source Solar Charger is the first fully waterproof solar charger when stowed...even the USB ports...so it can keep up with you on all of your adventures...no matter how wet, icy or dusty. ULTRA HIGH EFFICIENCY - The Wildtek Source Panels feature SunPower's latest high efficiency solar cells, delivering a faster more a efficient charge with a more compact panel...almost 2X as efficient as competing solar chargers GET THE FASTEST CHARGE - Wildtek's SmartCharge Technology will detect your USB powered device and deliver the optimum charge...compatible with Apple iPhone 7 / 6s / Plus, iPad Pro / Air 2 / mini, Galaxy S8 / S7 / S6 / Edge / Note 5 / 4, LG, Nexus, HTC and many DSLR's, GPS and more LIGHTWEIGHT, PORTABLE, WITH BUILT IN STAND - The Source panels were designed to seamlessly accompany you on any adventure...they're ultra lightweight, easily packable, include carabiner's to strap the panel to your backpack, and include a built in stand for optimal sun exposure and convenience FULL WARRANTY AND SUPPORT THE ENVIRONMENT - A full 2-year warranty provides you with full protection and you can feel good about your purchase, knowing that part of your purchase will fund the preservation and restoration of the planet