BigBlue 3 USB Ports 28W Solar Charger, 5V Foldable Waterproof Outdoor Solar Battery Charger With SunPower Solar Panel Compatible for iPhone 8/X/7/6s, Samsung Galaxy LG etc.[The Wirecutter's Pick] Easy To Carry: With compact size (11.1  6.3 1.3in folded or 33.1  11.1 0.2in opened) and lightweight (20.6 oz) design, BigBlue foldable solar charger panel bag is small and light enough to fit into any camping backpack, hiking daypack, or emergency kit. Triple USB Ports Power: 2 USB Charging Ports with SmartIC Technology and each port supply the optimal charging efficiency up to 5V/2.4A max. The 3 USB Ports can offer the total current at 5V/3.4A. Automatically Adjust Current and Auto-Restart function, no need to connect again when passing under shadow or cloudy days. High Energy Conversion: Highly efficient sunpower panel convert up to 21.5-23.5% of solar power into free energy. This special pet polymer surface protects it from occasional rain or wet fog and all the ports are covered by a cloth flap and rubber cover to protect them from dust or water damage. Wide Compatibility: Attached micro usb cable for almost all android devices & some DSLRs, or apple devices (needs extra apples cable). Note: our solar charger isn't fit all the laptops, it need to know the related parameters of your devices at first Package & Warranty: BigBlue 28W Solar Charging Panel, 50cm Micro USB Cable, User Manual, 24-Month Warranty And Friendly & Customer Service. Easy to be folded to the size of magazine, can be put in your bag, as a portable direct power to carry. 4 buckles attached for putting on camp or hang tightly on your backpack/tent/tree, etc. 3 Port USB connector: Can charge phones and tablets at same time. Auto restart: Whenever it lost contact with direct sunlight (by clouds, forest etc.), it will temporarily stops and start again automatically as soon as intercepts the sunrays.