Waterproof and Incredibly Durable: Smart IC Circuit with water proof treatment and rugged high-wear PVC fabric canvas provide you with worry-free in any outdoor environments and activities including water sports thunder storm high humidity weather. Will recharging immediately and quickly whenever there is sunshine.</br>Remarkably High Conversion Efficiency: Its SunPower solar panel array has a world leading solar energy conversion efficiency almost twice as efficient as most of other folding solar chargers in the market.</br>Dual-USB Smart Charging Technology: The build-in smart IC chip intelligently identifies your device and maximizes its charging speed while protects your devices from over charging and overloading. The charging current of USB ports (up to 2.4A max 5V DC per port or 3.3A max overall) is monitored and automatically adjusted according to the sunlight level.</br>Highly Portable: Compact size(12.20 ? 6.69 in folded) and copper-alloy eye-holes on each corner allow easy attachment to backpacks trees or tents. Lightweight (17.5 oz) and ultra-thin design (1.6in folded) make it perfect for outdoor activities.</br>No built-in battery. What You Get: SOKOO FSC-22 22W 2-Port USB Folding Solar Charger?? user manual?? 2 attachment hooks?? our 24-month warranty and friendly customer service.</br></br>Product Description</br></br><p><b>Highlight Features</b><br>High Conversion Efficiency<br>Dual-USB Smart Charging<br>Super Portable<p><b>24-month Warranty and 1 month money back guarantee.</b><p><b>Enhanced Strength</b><br>Compared to other solar chargers?? an extra PCB cushion is added between PET panel and fabric canvas to enhance its strength?? protecting it from breaking or morphing?? and making it perfect for outdoor activities such as hiking?? camping?? etc. <p><b>Maximum Compatibility</b><br>One solar charger is for all USB gadgets?? including Android devices?? iPhone?? iPad?? GPS?? GoPro?? digital camera etc.<p><b>Product Specifications</b><br>Power Output: 22W Dual USB 5V/2.4A(Max)<br>Unfolded Size: 12.2