Pair to Computer:Pair the headset with your PC by putting the headset in discovery mode and going to My Bluetooth Places on your PC "search for nearby devices". When the "PLT 510" is found, right-click on its icon and select "Pair Device". Enter the four-digit pass code (0000) and click OK. Then right-click again and select "Connect Headset". You will hear the tone in the headset similar to a ringing. Press the talk button on the headset to answer. You are now paired and connected to the PC.While you are listening to audio from the PC, you can switch to the phone by pressing the talk button twice. To listen to the PC audio, press the talk button. Go to My Bluetooth Places and right-click on the "PLT 510" icon. Select "Connect Headset". You will hear the tone in the headset similar to a ringing. Press the talk button on the headset to answer. You can then repeat the steps to go back and forth between the two devices. Before using your headset for the first time , you must pair it with your Bluetooth phone or device. Be sure the headset is fully charged. For set up and pairing instructions with Bluetooth devices other than mobile phones, please consult your Bluetooth device user guide.Click here for information about pairing to mobile phones.