Main Features: Charging Bag - Especially suitable for emergency occasions when you work or travel in the wild or power-cut occurred High Energy Conversion Efficiency - Adopted sunpower panels, increasing conversion efficiency up to 23pct which is much higher than common solar panel charger ( 15pct ) USB Outputs Design - Enabled to transmit power to phone devices directly, just for your great convenience Water Resistant Material - High-quality PET solar panels, anti-wear and water resistant, durable to use, long lifespan Thoughtful and Convenient Design - With two hooks, enable easily attach to backpacks for hiking camping and other outdoor activities Foldable Design - Easy to be folded to the size of magazine, can be put in your bag, easy to carry around Environmentally-friendly - Where there is light, there is electricity, energy-efficient design, conform to the intention of protecting our earth Multiple Protections - The product has passed the CE certification, protection for overcharge, overvoltage, overcurrent and short circuit - No built-in battery, don't worry about the security problems caused by heat and strong light High Compatibility - Suitable for most of 5V mobile devices, like phone, tablet, MP3, MP4, camera, PSP, GPS, etc.