Suntactics S14 Dual Port Solar Charger, Quick Charge Phones, Power banks and many other USB Devices Using Only the Sun! Assembled in the USA Use only the sun to charge your your handheld device! Place the panel in the sun, plug in the phone and watch the charge increase. Dual USB ports, Charge two USB devices at the same time, Auto-retry(U.S.Pat No. 9,929,443) We were the first with this technology. Auto-Retry helps your phone continue to charge with intermittent slow moving shadows. Phones are finicky with solar charging. sChargers compensate for this. sChargers are extremely durable, reliable and water resistant. The solar panel and electronic connections are completely encapsulated. High efficiency solar cells are configured correctly for optimum light-to-voltage conversion for increased charging speed. Corrosion resistant from salty environments and water tested to 40 feet. The Suntactics S14 is compatible with most all USB devices. You will be amazed on how fast your phone charges using only the sun. Compatible with all iPhones(X,8,7,6 and all plus's). Samsung Galaxy's S9, S7, S8, S6, S5, plus's), pretty much all phones and tablets. Solar charges all powerbanks. Solar charges AA/AAA,18650, A23 batteries, SLR cameras using a USB charging cradle found on Amazon. Solar charges many of the high powered LED USB flashlights as well. Independent, Anti-Feedback, dual port design prevents short circuit when charging two devices at once. 2800mA, 5volts (14Watts) 11.5" x 7" x 1/4" closed, 11.5" x 14.5" x 1/8" open , 21oz Designed and assembled in Silicon Valley, USA.  Includes the Suntactics S14, travel pouch, User Manual, 2-year warranty, excellent customer support