To pair your wireless headset with a Bluetooth device:
Set the slider switch to the Bluetooth icon.
Slide the track switch to "Next" and hold, and press and hold the "Volume up" button at the same time, until the link LED indicator blinks rapidly.
NOTE: For initial Bluetooth setup, your headset will automatically be in pairing mode.
Make sure Bluetooth is active on your device and then select "H800 Logitech Headset" in the Bluetooth devices list (see your Bluetooth device's documentation for more help).
Once the connection has been established, the link LED indicator should turn solid green.
NOTE: For help with pairing additional Bluetooth devices with your H800 headset, see answer 360023242674.