Foldable & Portable When folded, the portable and frame design is suitable for outdoor, indoor, travel, camping, and RV use and takes up no space. Eyeholes make it simple to attach a portable solar panel to a backpack while traveling. Wide Compatibility Equipped with the Dual USB Output, 100W solar panel is highly compatible with phones,ipads and other devices.You also could connect the ALLPOWERS S200/S300/S700 poratble power station.