Come and Check Our Branding Solutions.Dual-USB output with a total current of 5V/2.1A and input with 100-240V enables you to charge two mobile devices simultaneously at high speed.It can really save you time.Our charger block has a protection system against overcharging,over-currents,and overheating.The charger will automatically stop charging when power is full,which can maximumly protect your device.Universal USB charger box match all USB A cable/cords or your phones. Pls check inventory and detailed info before placing your orders.