This USB Sound Card is intended for use with microphones that have NO speakers.
Your computer microphone will perform only as good as the sound card or integrated audio system that you plug into. Most laptops and PCs today have audio systems built in and it is often placed close to noisy components like the power supply or high frequency processors. In addition, PCs may be used in high noise level environments which can affect the performance of applications, such as those that use speech input.
Andrea's PureAudio USB-MA with patented microphone noise reduction technology eliminates noise problems as it utilizes high quality digital circuitry and has state of the art noise reduction algorithm software. This format bypasses your desktop or laptop computer's sound system, providing increased intelligibility and performance of stereo microphone input for your digital audio applications including VoIP and speech recognition programs.