To use this ESE ES-488U device, first connect it to the correct power supply that comes with it. Make sure the connection is secure. When you start using it, select the appropriate functions for time - code reading, generation, or video insertion according to your needs. Keep in mind that you should avoid exposing the device to extreme temperatures or humid environments. For maintenance, clean the exterior of the device regularly with a soft, dry cloth. If you encounter any issues, refer to the user manual or contact our customer service.