Qualcomm Quick Charge 3.0 
Engineered to refuel devices up to 4x faster than conventionalcharging. Powered by INOV (Intelligent Negotiation for OptimumVoltage) Technology for fine-tuned power output and more optimizedcharging cycles. Up to 45% more efficient than Quick Charge 2.0& compatible with a full range of USB connector types， from Ato C.

Turbo Recharge at 5V 4A 
Simultaneously plug into the micro USB and a USB-C input on thePB-Y3 to recharge the Power Bank in about 8 hours with a combinedcurrent of up to 4A. Large Power Bank capacity doesnu2019t have to meanlong wait to recharge.

AUKEY EntireProtect 
Advanced circuitry and built in safeguards to protect your devicesagainst excessive current， overheating， and over charging.

Universal Compatibility 
Designed to work with all popular USB powered devices from iPhones to Android phones， tablets， photography gear， Bluetooth speakers， headphones and more. Whatever USB powered gear you've got， we've got you covered.

Battery Indicator Light 
Press the power button once to check the remaining battery level.Battery level is indicated by the color of the LED indicator light.green battery indicator light means your Power Bank is charging，when it reaches 100% the light will turn white. 
Red 0 - 30% 
Green 30% - 70% 
White 70% - 100% 

Specifications  
Capacity: 30000mAh 
Micro-USB Input: 5V 2.4A 
USB C Input / Output: 5V 3A 
Output 1 (Quick Charge 3.0): 3.6V-6.5V/3A， 6.5V-9V/2A，9V-12V/1.5A 
Output 2 (AiPower): 5V 2.4A 
Dimensions: 5.9'' u00d7 3.3'' u00d7 1.1'' 
Weight: 20.4 oz