Use this 3.5mm Audio Cable from Benro to connect a microphone through your gimbal using its 3.5mm passthrough audio port to a phone or recording device. The cable is 4.3" long and has right-angle 3.5mm TRRS connectors on each end.
In the Box
Benro 3.5mm Audio Cable for 3XS and 3XS Lite Gimbals