The DJI Lidar Range Finder RS allows for precise distance measurement and is perfect as a camera accessory. Lidar Range Finder RS enables high-precision distance measurement, featuring a compact design with cooling fins. → I opened the box, but I haven't used it. If you need a functionality check, please comment. Focus wheel for DJI RONIN-S allows for precise focus adjustment. → I bought it, opened the box, and tried attaching it once, but it has been stored at home since then. Both the Lidar Range Finder RS and the focus wheel are in like-new condition. I purchased them a few years ago, but I haven't used them for filming, although I opened the boxes. Please check the accessories in the images. Please refrain from purchasing if you are sensitive to items stored at home. Thank you for looking!