When activated, safety channel mode will record a second track of audio at -20dB as a backup in case your sound source gets loud unexpectedly and causes the main channel to distort. To enable safety channel mode, open the RØDE Central app, plug in the Wireless GO II receiver, navigate to the settings screen, and click the 'Safety Channel' toggle (note: this can only be activated in 'Merged' mode). Read more about the safety channel at the Wireless GO II User Guide.