Using this Hitachi camera control unit is easy. First, connect the correct power supply that comes with the unit to the control unit and plug it into a power outlet. Then, connect the unit to your camera according to the instructions. When using it, make sure the power supply is stable to avoid malfunctions. For maintenance, keep the unit in a dry and clean place. Wipe it gently with a soft cloth if it gets dirty. Do not expose it to extreme temperatures or moisture. If you encounter any problems, contact the customer service.