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Charge virtually any electronic device with this portable solar charger. When fully charged, it will completely power up most smartphones twice. It's easy to use, just connect the Bolt to your device with a USB cable and hit the on/off button to start charging. It also features a mode that optimizes the charging of Apple® devices. The Bolt can be charged in the sun, via USB port from a computer or by a wall plug. Efficient solar panels fan out to soak up power from the sun. To prop the panels on the best angle to catch the sun's rays, just slide a pencil thorough the hole located between the solar panels; pencil included. Holds a complete charge for up to a year. Equipped with a standard USB port for charging devices and a micro USB port for taking a charge from a computer or wall outlet. Includes a cable with a standard USB on one end and a micro USB connection on the other. Use your device's USB cable for charging, although the Bolt's cable can be used to charge devices that are equipped with a micro USB port. Imported. Dimensions 3½"L x 3½"W x 1"D. Weight 5.3 oz.