Qualcomm Quick Charge 3.0 Technology Engineered to refuel devices up to four times faster than conventional charging. Powered by INOV (Intelligent Negotiation for Optimum Voltage) Technology for fine tuned power output & a more optimised charging cycle. Up to 45% more efficient than Quick Charge 2.0 & compatible with a full range of USB (Universal Serial Bus) connection types, from A toC. Ai Power Adaptive Charging Technology The signature green Ai Power USB (Universal Serial Bus) ports adapt to your devices to provide the safest maximum recharge rate with up to 2.4A of dedicated output available. Compatible with all your USB (Universal Serial Bus)-powered tech whether they be Android or Apple devices or Bluetooth speakers, smartwatches, dash cams, etc AUKEY Entire Protect Advanced circuitry with built in safeguards to protect your devices against excessive current, overheating, & overcharging. 12 Month Warranty Whether it's your first AUKEY purchase or you're back for more, rest assured that we're in this together. All AUKEY products are backed by our 12 month warranty.