■ Charge the battery
Before you can connect the headset to a Bluetooth device or use active
noise cancellation, you must charge the battery.
Before charging the battery, carefully read “Battery and charger
information”, p. 17.
1. Connect the charger to a wall outlet.
2. Connect the charger cable to the charger connector. The indicator
light for charging and active noise cancellation is red during
charging.
Charging the battery fully may take up to 2 hours.
3. When the battery is fully charged, the indicator light turns green.
Disconnect the charger from the headset, then from the wall outlet.
When you unplug a charger, hold and pull the plug, not the cord.
When the battery charge is low and Bluetooth connectivity is activated,
the headset beeps every 5 minutes and the indicator light for charging
and active noise cancellation flashes red.