Charging Your Headset Using the USB Charger Before using your headset for the first time, charge it for at least 1 hour. A full charge takes approximately 3-4 hours. 1. Connect the charger cable to the headset. 2. Plug the charger into the USB port on your computer. While your headset is charging the indicator glows red. When your headset is fully charged, the indicator turns off.Note: Do not use the unit while it is charging. Note: Charging time depends on the amount of power your USB device provides.