This Powerful UL-approved power bank will allow you to harness the power of the sun when you need a charge for your favorite tech. This durable solar charging ABS and silicone unit has dual USB ports to charge multiple devices and a built-in lithium-ion battery that packs 4000and 5000 of power. Features an improved solar panel that’s 50% more efficient than similar products. Just expose the solar cells to sunlight, and you can charge up without having to search for an outlet. Add your logo or message to this gear that comes with a handsome gift box and complete instructions. Compatible with most cellphones, tablets, media players, and other gear. The design is anti-shock and water-resistant, making it a perfect adventure companion! Specs: UL standard Micro Input: 5V/2A 2 USB outputs: