Features HIGH CONVERSION EFFICIENCY: 20W solar panel is made of excellent single crystal solar cells that generate energy from sunlight with a 24% higher conversion efficiency and better performance, providing your device with unlimited power in the sun. DUAL OUTPUT AND HIGH COMPATIBILITY: Foldable solar charger 20W with USB output(5V or 9V, maximum 2A) with 2 USB output ports for safe and fast charging of your devices, compatible with smartphone, tablets, speakers and more. PORTABLE AND FOLDABLE: The compact solar panels can be folded down to the size of a small handbag, providing portability and simplicity. The connection hook is ideal for attaching a backpack while hiking or walking around town. DURABLE MATERIAL: The solar cell charger has a durable excellent Oxford cloth housing, IPX4 waterproof and dustproof; ETFE high light transmittance film with high durability and higher conversion rate. WIDELY USED: Foldable solar panel is perfect for outdoor activities such as camping, hiking, picnics, and unexpected power outages. Specification: Item Type: Foldable Solar Panel Material: Oxford cloth and polysilicon Output Voltage: 5V or 9V Current: 0-2A Output Interface: USB Wafer: Class A polysilicon Conversion Rate: 24% Process: Laminated sanding board(scratch resistant) Package List:1 x Foldable Solar Panel2 x Buttons Package List 1 x Foldable Solar Panel 2 x Buttons