Hello, Oqba. You can't mute the alarm, but you can pause it with the audio pause key: "Pressing the Audio pause key silences the audible alarm for 2 minutes, and the indicator next to the key lights red. The remaining silence time is shown. If the alarm condition persists after the 2 minutes, the audible alarm resumes. In a critical situation, such as the Ambient state, you cannot stop the audible signals. A new high-priority alarm cancels the current audio pause." Alternatively, you can adjust the alarm volume: "Touch the System button, the Settings tab, and then the Loudness tab."