A dual connection member allowing a liquid crystal display unit and a keypad of a mobile phone to rotate and a hinge device thereof are provided. The invention also relates to a microorganism, which has xylanolytic activity and has been genetically modified to enhance its xylanolytic activity, and to reduce its xylitol metabolism. The shaft has a retaining means spaced from the head to accommodate the work pieces. The controller transmits the generated user registration request data to an external server via a wide-area communicator. If the extracted data is matched with the known account and known account holder, then a payment amount included within the extracted data is then processed.