If you want to listen to your mic output in real-time, you'll need to use a software application that supports this feature. Many voice chat applications will allow you to do this, including Skype, Discord, and Mumble. You can also use some recording software programs to monitor your mic output, such as Audacity. To do this, simply launch the program and then select your microphone as the input device. Then, click on the Record button and start speaking into your microphone. You should see the sound waves being generated in the program's window, which indicates that your mic is working properly and broadcasting your voice.