Description Compatibility ‌Matrice 350 RTK and Matrice 300 RTK. The only compatible remote controller is DJI RC Plus. Before using, please upgrade the firmware of the drone and remote controller to the latest version. Pre-recording It is a feature that allows the device to cache a segment of video for a set duration before the user starts recording. When recording begins, the cached content is included in the video, preventing excessive use of microSD card space. Purpose: With pre-recording enabled, even if recording starts after an event has begun, the device can save the moments before the recording started onto the microSD card, ensuring that potentially critical information isn’t missed. Application The products are suitable for a wide range of fields, including but not limited to geothermal inspection, firefighting and search and rescue, forest fire prevention, wildlife protection, power line inspection, oil and gas inspection, traffic law enforcement, facility inspection, and infrastructure inspection.