FeaturesAdvanced Qualcomm Quick Charge 3.0 TechnologyWith Qualcomm Certified Quick Charge 3.0 the latest fastest and most efficient USB charging technology dodocool QC 3.0 USB Wall Charger employs Intelligent Negotiation for Optimum Voltage INOV algorithm and supports flexible voltage options from 3.6V to 12V with 200mV increments allowing a mobile device to dynamically adjust to the ideal voltage level supported by that specific device. The maximum output is 3.6-6.5V/3A 6.5-9V/2A or 9-12V/1.5A.4x Faster ChargingEngineered to charge Quick Charge 3.0 enabled Android devices up to 4X faster than conventional chargers up to 27 faster and up to 38 more efficient charging over Quick Charge 2.0. Quick Charge 3.0 enables you to charge a typical phone to 80 in about 35 minutes.Wide CompatibilityCompatible with Qualcomm Quick Charge 1.0 2.0 and 3.0 technology and you can also charge your non-Quick Charge devices with this charger. It provides optimal charging current for non-Quick Charge Android devices and charges at up to 1A for iOS devices.Reliable ProtectionCE FCC RoHS certified. Industry grade materials premium circuit and built-in over-current over-voltage short circuit protection ensure the safest fastest charge for all your USB powered devices.Rated DOE Level VI for Energy EfficiencyMeets new energy efficiency requirements of DOE Level VI which is the highest energy efficiency rating.Compact PortableCompact size and international voltage compatibility AC 100-240 V make it portable for travel. 18 Months Warrantydodocool offers an 18-month warranty and friendly customer service to assure your long term enjoyment.