ContentsPlantronics P420 USB Speakerphone
1 Package contents and features ...................................4
1.1 P420 USB speakerphone ........................................4
1.2 P420 USB speakerphone features ..........................4
2 Set-up ..........................................................................5
2.1 Connecting USB speakerphone to PC ....................5
2.2 External speakers/headphones connection ............5
3 Using your P420 USB speakerphone ..........................6
Volume up, volume down, mute ....................................6