When the headset battery is low, the indicator light on the headset will flash red and at the same time, there will be a low battery alert. The headset battery level is also displayed on the hub screen.
A full of charged battery can last around 10 hours. When the headset is low battery, the indicator light on headset will flash in red, at the same time there will be a voice message as reminder, besides the battery volume displaying on the screen of the Hub.
