| Charge Headset/Charging Case | 12LED indicator DescriptionBattery lowFlash red Ultra-low batteryCheck on Yealink USB Connect (BH71 Workstation Pro)Do one of the following to check the battery level on the Yealink USB Connect:Before you begin:• Download via http://support.yealink.com/.• Connect the headset to the PC via a BT51 dongle.• Connect the charging case and headset to the PC via a USB cable.Note:• You need to power on the headset and stand it on the charging case when you connect thecharging case and headset to the PC via a USB cable.• The BH71 Workstation need to purchase the BT51 dongle separately.Related tasksYealink USB Connect