Using the Foxeer Mini Razer is easy. First, connect it to your device. You can switch between PAL and NTSC based on your location or preference. For the best results, ensure a stable power supply. When it comes to maintenance, keep it clean from dust and debris. Avoid exposing it to extreme temperatures or moisture. If you're not using it, store it in a dry place. And remember, if you face any issues, refer to the user manual or contact customer support.