A ball joint, is provided in the form of a cross axis joint with a housing, a bearing shell in the housing and a ball sleeve. Contact glass, a light source and a first mirror are placed in the reading unit at an end portion of the side having the paper delivery tray. The sorption cooling unit provides a lightweight and low volume alternative to the traditional gel pack cooling systems that are commonly used in the modern shipping industry for shipping containers. The surrogate current is added to the inductor current to cancel or reduce the magnitude of the varying current component. In response to the associating the location identifier of the removable memory with the file, the file is copied from the memory of the portable electronic device to the removable memory.