Find the icon for Sound in the notification area (lower right corner of your screen) and right-click or press and hold it. The simplest and most direct way to change your playback device works the same way in Windows 7 and Windows 8.x. Now to change it to be the Windows default playback and recording device. Physically connecting your headset to the PC running SmartSDR for Windows is the first step. How To Change The Default Playback (speakers) Device However there are cases when you may need to manually set the appropriate sound device as the default and the procedure below will explain how to accomplish that task. For example, your speakers will be deactivated for as long as you have your USB headset plugged in. In general, on Win7 and Win 8.x PCs, when plugging a headset into an existing sound card or USB based audio device into a PC, Windows will automatically designate the newly inserted device as the default sound device, and after a short time will activate it, making LAN Remote a 'plug-n-play' feature. The SmartSDR LAN Remote feature uses the Windows default Playback (speaker / headphones) and Recording (microphone) audio devices.