Please note that the plug type is O-shaped (two prongs) and cannot be directly plugged into Japanese outlets. This is a USB-A power adapter for overseas use. It was an accessory for Apple products, but I am selling it because I have no use for it. It still has the paper attached and has never been used, but it is not individually packaged. INPUT: 100-240V 50-60Hz 0.15A OUTPUT: 5V 1A