5
- Charging the battery -
Before using BT400GII you will have to charge the battery for
approximate 3 hours to ensure a fully charged battery.
1. Plug the AC power adapter into the DC POWER IN socket
situated at the back of the headset.
2. Plug the AC power adapter’s plug into an electrical wall
outlet.
3. When charging, the LED in the
button is on and re-
mains lit until charging is complete.
4. Charge the headset for approximate 3 hours or until the
LED in the
button extinguishes.
5. Remove the AC adapter from the headset’s AC power
jack.
DC POWER IN
Notice
: The headset doesn’t work while it’s charging.