Powerfilm USB AA Battery Solar Charger

Folding charger uses the sun to charge most small USB devices and rechargeable AA batteries. It provides full charge in four hours of full sun, and a charging light on the side of the enclosure indicates charging status. Six grommets for secure fastening to a pack or to the ground. Folded dimensions 3.25" × 5.5" × 1.38"; unfolded 24" × 5.5". USB charging voltage 5.0V with up to 1.0A of charging current.