Charge up to two (2) USB ready devices with the Cellet High Powered Dual USB Port Charger. Equipped with two (2) USB ports with maximum compatibility, you can charge any USB ready device such as iPhone 5s, Samsung S5, iPad, digital camera, GPS, etc. simultaneously. The built-in smart IC chip technology prevents your device from overcurrent, overcharging and overheating and the convenient compact size allow easy transport of the charger. The Cellet Charger is perfect as a spare power source for work or home. (This item has a 3 year warranty. Please visit Cellet's website for further warranty information.)