Skanska wrote

  @Wayne-TP hi just got the D235 and mine hasn't got the distortion feature but disappointed as my D150 had it and that was older. Any chance this can be fixed. 

  @Skanska 

This feature is currently being gradually rolled out to devices via the cloud and has not yet been fully available for all devices. If your doorbell is updated but still do not see this feature option, that is normal. The rollout will continue to expand, we appreciate your patience.