The ZEOS SmartCase has other functions besides charging. Its large 64 GB of extra memory expands the storage capacity of the iPhone SE. Using the app, photos taken can be transferred directly to the SmartCase memory. In addition, using the integrated ZEOS SIM card iOS App, the iPhone can be converted into a dual SIM phone. The smartphone is charged via a charging port, using a mains adapter and a micro-USB cable. The iPhone charges first, then the battery in the Case.