Anker 14W Dual-Port Solar Charger with PowerIQ Technology The Anker Advantage: Join the 6 million+ powered by Amazon's #1 charging brand. Exclusive PowerIQ Technology: Detects your device to deliver its fastest possible charge speed up to 2 amps under direct sunlight. Dual-Port Power: 14 watt monocrystalline solar array provides enough power to charge two devices at a time. Industrial-strength PET panels and polyester canvas ensure weather-resistant durability. Compact size (11  6.9in / 28  17.5cm folded or 34.6  11in / 88  28cm opened) and well - placed eyeholes allow easy attachment to backpacks while hiking. What You Get: Anker 14W Foldable Solar Charger, welcome guide, our fan-favorite 18-month warranty and friendly customer service.