Test Audio Devices
Lets you verify the audio input and output devices you've specified.
Audio input device (microphone)
Specifies which microphone or other audio input device to use. Choose Auto to use the Windows default audio device.
Audio output device (speakers)
Specifies which speakers, earphones, or other audio output device to use. Choose Auto to use the Windows default audio device.
Alerts
Specifies the audio output device to use for ring tones and alerts. Choose Auto to use the Windows default audio device.