Portable attachment, and communication system

The present invention relates to a portable attachment and a communication system which enable desired images to be displayed on an article worn or carried by a person, while achieving flexibility and low power consumption. The portable attachment is an article which is provided with a display body configured from an electrophoretic display, and which is carried by or attached to a user. The present invention is applicable to a portable attachment or the like. Examples of the portable attachment carried by the user include bags, purses, and key holders. Examples of the portable attachment attached to the user include hair accessories, ties, watches, and clothes.