Dual port design: the USB wall charger is designed with 2 ports convenient for you to charge 2 kinds of electrical appliances at the same time and output connection adopts standard USB interface output constant voltage constant current charging to achieve anti-interferenceLightweight and mini size: each dual port USB charger measures approx. 5.5 x 2.6 cm/ 2.17 x 1.02 inches and only weighs 19.6 g easy for you to carry out and store you can put it in your carry-on bag making your life easierWhat you get: the package contains 12 pack of USB charger wall plugs in black enough quantity for you to share with your friends and familyOffice and home equipment: these dual port 2.1A USB phone wall chargers allow charging at home or in the office together with USB cable connection; Simply plug in the USB cable and plug the adapter into the wallWide application: the dual port USB quick charger cube can be compatible with all USB cable cords and phones which enables you to charge your 2 smartphones or tablet devices simultaneously