Dshine 4W11V Solar Panel with 5 Meter Cable | Solar USB Mobile Charger | Waterproof Camping Travel Charger Compatible 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 outputing efficient wattage. The Less The Waste, The More The Power Dshine highly efficient solar cells convert up to 17-18% 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 where fun matters 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 guarantee the appropriate charge they can benefit from. Let Nature meet the best technology has to offer. Weatherproof A finely refined waterproof to outlast whatever the weather throws at it. Even water. Equipped with 4 practical hooks to always catch as much sunlight as possible, and 1 iSmart USB cables, you'll have the best travel companion for your smartphone, camera, and any other USB device that ran out of juice What's In the Box: 1 x Dshine 4W Dual Port Outdoors Charger 1 x USB Charging 5 meter Cable