[. . . ] [. . . ] Register your product and get support at www. philips. com/welcome User manual Headband headset p PC 1 Connect the headphone plug to the socket and the microphone plug to the socket of your computer. 2 Adjust the volume by the volume switch. 3 Slide the microphone switch to microphone on or off. or to turn the [. . . ] [. . . ]