A foldable plug, compact size and voltage compatibility (AC 100-240V) make it the ideal travel companion. Compatible with almost any USB device. Backward-Compatible: Also works with Quick Charge 2.0 and adaptively charges all standard USB-powered devices (including Android and Apple) at up to 2.4A. Quick charge 4x faster than standard chargers. Power up to 18 watts Output: 5V 2.4A Output Quick Charge 3.0: 3.6V-6.5V/3A, 6.5V-9V/2A, 6V-12V/1.5A (Max). UL Certified for quality and safety.