Automatic Input Voltage : AC110-240V-50/60Hz 0.35A Max USB Output : 5V/2.1A Max AUTO ID : Maximum compatibility with smart detection technology to negotiate the fastest charging support by your device 1 Year Warranty Include 1 Pcs MicroUSB Cable High grade fire retardant material with precision manufacturin Bulit in Safety Protection for over current, Over voltage, Over heat and Short Circuit