Feature:1. This foldable solar charger panel bag is small and easy to carry. You can take it with you when you are out or traveling.2. High efficiency Sun Power panels convert up to 21.523.5% of solar energy into free energy under sunlight.3. It can prevent rain or wet fog, and the ports are covered with cloth and rubber covers to protect them from dust or water damage.4. Suitable for almost all 5V devices for Android, for IOS and some digital SLR cameras (requires additional original data cable).5. Our solar cell phone charger cannot store electricity, please unfold it outdoors under direct sunlight, and then connect it to your device.Specification:Item Type: Solar DC Charging Bag Folding BagMaterial: ABS+Cloth+RubberSolar Panel Power: 21w Solar PanelOutput: 5V/3.5A (Dual USB Maximum Capacity)Expanded Size: Approx.700x290x16mm/27.6x11.4x0.6inFolding Size: Approx.290x170x30mm/11.4x6.7x1.2in.Package List:1 x Solar DC Charging Bag Folding Bag2 x Button1 x ManualNote:According to different sunlight radiation, the charging current and time will be different. Best to use with power bank.