Charge the battery
Before using the headset, you must charge the battery.
When you unplug a charger, hold and pull the plug, not the cord.
When your headset needs recharging do the following:
When the battery is full and the yellow indicator light turns green, do the following:
You can also charge the headset from your computer with a compatible USB cable.
With a wireless connection, the fully charged battery has power for up to 24 hours of talk time or 24 hours music playing time, or up to 7 days of standby time.
When the battery charge is low, you hear a periodic voice prompt or beep, and the yellow indicator light flashes.
When the battery is empty, you can still use a wired connection without active noise cancellation (ANC).
The battery indicator light tells you the level of battery charge whenever you switch the headset on or off. A green light means there is enough power. If the light is yellow, you may need to recharge the battery soon. If the light is red, recharge the battery.