Serenity User Manual

Session Controls and Indicators

Learn what each controller button and status indicator means during setup, charging, and a session.

Controls

  • Z button: Starts or stops a session.
  • Plus (+): Increases stimulation intensity.
  • Minus (-): Decreases stimulation intensity.

Light Indicators

Pulsing Green

Meaning: A session is running.

What to do: No action is needed.

Blinking Red

Meaning: The device has detected poor contact with the ear clips.

What to do:

  1. Stop the session.
  2. Check that both clips are positioned correctly.
  3. Check the conductive gel and reapply if needed.
  4. Restart the session.

If the warning continues, inspect the clips and cable for damage.

Flashing Blue

Meaning: The device is making an automatic adjustment.

What to do: No action is required.

Blinking Battery Bars

Meaning: Battery level is low.

What to do: Recharge the device before your next session.

Cycling Battery Bars

Meaning: The battery is charging.

What to do: Allow charging to finish.

Battery Bars Turn Off After Charging

Meaning: Charging is complete.

What to do: Disconnect the USB-C cable.

If the device displays an unfamiliar light pattern or repeatedly interrupts sessions, stop using it and contact Zeno Labz support.