Instructions
Use the left and right buttons on the directional pad to scroll the "Settings" icon on the PS3 menu. Use the up and down buttons on the directional pad to navigate sub-menus. Press the "X" button to select "Accessory Settings." Select "Manage Bluetooth Devices."
Place your Bluetooth headset in its pairing/scanning mode. Select "Register New Device." The PS3 begins scanning for the headset. When the name of your headset appears on screen, press the "X" button. Enter the pass key as listed on the headset or in the headset's documentation and press the "X" button. The headset is now paired with the PS3. Press the "O" button repeatedly until you're back on the "Settings" menu.
Select "Accessory Settings." Select "Audio Device" settings.
Select "Input Device" and select your headset as the microphone. The PS3 automatically assigns the headset as the output device. Speak into the microphone to test the headset. Select "Microphone Level" and press the "X" button to adjust the volume.