UR33 is a USB condenser recording microphone with cardioids polar pattern. Its cardiods polar pattern picks up sound more specific when you are recording. It comes with a built-in headphone amplifier which fits for 3.5mm monitor headphone connector. Plug the headphone into microphone and drive the software for zero-latency monitoring. By using the control knobs on the shell, you are able to quickly adjust the microphone gain and headphone volume for an optimal recording and monitoring experience. During recording you want to do something just press the MUTE button when you want to start recording press the button again to record.