Abstract: A multi-function mobile device carrying case for a mobile device includes a case housing incorporating a retractable headset, a microphone, a multi-function control button, and an interface cable. The carry case further includes a device housing attached to the case housing and configured to accommodate a mobile device. When a mobile device is placed in the device housing and the interface cable is connected into the headphone jack of the mobile device, the carrying case enables the user to use various functions of the mobile device without accessing the mobile device itself.