Built-in upgraded pure copper coil to improve the charging speed by 45%;
Smart chip avoids over-charging, efficiently protecting your phone;
Two charging modes: 5V/2A-standard mode; 9V/1.67A-fast charging modes;
Automatically identify different devices to choose the appropriate charging mode;
Cooling and ventilation design at the bottom, thus no heating even fast charging;
It has strong compatibility, applicable for 99% smart phones.