The reader has optional sounds for Confirmation, High, Low, & Signal Loss Alarms*, Reminders, and Touch Sounds and optional vibrations for Confirmation, High, Low, & Signal Loss Alarms, and Reminders. Sound & Vibration settings can be customized in the Settings menu.
*Notifications will only be received when alarms are turned on and the sensor is within 33 feet unobstructed of the reading device. You must enable the appropriate settings on your smartphone to receive alarms and alerts, see the FreeStyle Libre 3 User’s Manual for more information.