RAVPower Solar Charger 21W Solar Panel with Dual USB Port Waterproof Foldable Camping Travel Charger Compatible iPhone Xs XS Max XR X 8 7 Plus, iPad, Galaxy S9 S8 Edge Plus, Note, LG, Nexus and More

Important Note: 1. Please DO place the solar panel in direct sunlight to get the most efficient energy conversation. 2. Please DO NOT place solar panels behind windows. This may significantly reduced energy conversation. 3. Please DO NOT lay the solar panel directly on CONCRETE FLOOR, SAND OR other easy-heat-conduction place when charging. Doing so will overheat the solar panel. This may significantly reduced the conversion rate to prevent outputting efficient wattage The Less The Waste, The More The Power Ravpower highly efficient solar cells convert up to 21. 5-23. 5% of solar power into free energy. Make sure to always get the most power you can, whether it is a sunny day or you are hiking under a cloudy sky. Plug in up to two devices at once and let Nature take care of the rest. Smaller, Yet Powerful A lightweight portable device that will be no nuisance during your most adventurous treks. Hook it up to your backpack, tent, or up the nearest tree, and make sure to get as much power out of the sun as possible. The ideal choice for camping, hiking, cycling, and any other outdoor activity and running out of power cannot be a concern. Charge Smarter The advanced combination of iSmart and Smart IC technologies will detect all connected devices' individual input and distribute the total output accordingly to the appropriate charge they can benefit from. Let Nature meet the best technology has to offer. Weatherproof A finely refined waterproof fabric to outlast whatever the weather throws at it. Even water. Equipped with 4 practical hooks to always catch as much sunlight as possible, and 2 iSmart USB cables, you'll have the best travel companion for your smartphone, camera, and any other USB device that ran out of juice.