"First, turn on Bluetooth and Bluetooth visibility in your phone. This makes your phone visible to other Bluetooth devices.
Headset instructions:
Make sure that the headset is fully charged, turned off and within 1 m (3 ft) of the phone.
Press and hold the On/Off button for at least five seconds, until you hear along high frequent beep and the light flashes red and green.
The headset is now in pairing mode.
If your phone supports auto pairing, press Yes when the question “Add device?” appears in your phone. If not, continue with the next step.
Prepare your phone according to the phone instructions on how to add a Bluetooth device. Please note that for some phones you may need to enter a passcode. The headset passcode is 0000.
Phone instructions (NB: these may differ a little depending on phone model. For exact instructions, see Pairing instructions for the specific headset and phone model on www.sonyericsson.com/support.):
Enter the main menu and go to Settings, then select the Connectivity tab.
Select Bluetooth > My devices.
When New device appears, press ""Add"".
The phone starts searching for devices. Make sure that the headset is in pairing mode.
When the headset becomes visible in the Devices found menu, highlight it and press ""Select"".
Enter the Passkey (0000 by default) and press ""OK"".
The headset is now added to the list of paired devices and is ready to use."
Pairing (sometimes also called adding or bonding) enables two Bluetooth devices, for example a headset and a phone, to connect to each other and work together whenever they are switched on and within range of each other.
Before you can start using your Bluetooth Headset with another Bluetooth device, for example a phone, the two devices have to be paired with each other. You only need to pair the two devices once, and normally there's no need to repeat this procedure. But if you want to use your headset with, for example, another phone, you must pair the headset with the new phone.
To answer a call with the Bluetooth™ headset, press the call handling button. To end the call, press the call handling button again. (You can also use the phone keys for handling calls.)
You should reset the headset as an early step in troubleshooting when there appears to be problems with the connection between the phone and the headset even if a proper pairing has been made. When you reset the headset, all connection settings in the headset are erased and the connection with your phone will be lost. You will have to pair it again to use it with the phone.
Before you start, make sure your phone supports voice commands. To start using voice commands (for detailed instructions, see the phone's user's guide):
Prepare your phone by activating the voice command function.
Record your voice commands. When you've done this, you'll be able to use voice commands with the headset and the phone.
Note: Do the recording in a normal environment. Check that the phone numbers are saved correctly (for example, home number under "Home", etc.).