Why can't I disable the end-of-session beeps on my NeuroRester module?

 The three end-of-session beeps on the NeuroRester module are a non-modifiable hardware safety feature. It exists strictly to remind the user to remove the module after use, and cannot be disabled or muted via software or App configurations.

Can the CardioGyms beeps be toggled?

Yes. The factory default is OFF. You can toggle it anytime via the App: Device List → Timer Settings.