The present invention is directed to a carrying case with an integrated power supply system for providing power to multiple electronic devices from a single power source. A corresponding plurality of first connections is formed with each of the plurality calling endpoints. The corresponding point file comprises positional information on the corresponding points and difference data on attribute values of the corresponding points. Based in this modeling information, the locationposition of the specific features are then determined. The handle extension may be configured to radially rotate substantially one hundred eighty degrees in a second direction on the single plane to retract the push arm and the guide arm.