Use this Brain3D Short Dual Antenna Mount for DJI O4 Air Unit Pro to secure your stock antennas. It's perfect for pilots who want a lightweight option. There are two standoff width options: 25mm - 35mm and 15mm - 25mm. Both are compatible with the DJI O4 Air Unit Pro and are black in color. The mount is made by Brain3D and is easy to install. Just measure the standoff width on your frame before installation.