The DJI Ronin Expansion Base Kit for RS 2 is an add-on accessory for the DJI RS 2 Gimbal Stabilizer that allows users to mount the gimbal head to car mounts, jibs, and cable cam systems. The kit includes the tethered control handle, external battery adapter, and a universal mounting plate with 1/4"-20, 3/8"-16, and 8mm mounting options for wide compatibility. Please note that this kit is not compatible with the DJI RSC 2 gimbal.