You can change the microphone mode based on the recording environment.

From the main menu, select Setup > Microphone.

Spatial

Records spatial audio using all four microphones (Planar Spatial Audio). This option is not available when you are using the Front Only or Rear Only lens modes.

Rear Only

Records mono audio using only the rear microphone. This can help to reduce wind noise.

Off

Turns off all internal and external microphones, and records video without audio.