Low Battery Alarm; Empty Battery - LENCO EPB-410 Bedienungsanleitung

10. Low Battery Alarm:

flash red for 5 seconds and you will hear a "low charge" sound.

11. Empty battery:

If the battery of the headset is empty, it goes off automatically and you
will hear sound ''turn off''.
If the earphone has less than 20% of the battery life, the light will