With VMic they can speak! They can communicate by Skype (or other VoIP software) verbally! It installs additional "VSND Idev" audio input device into your system. You can later select this device as an audio input for any VoIP program as a microphone. Then you can type a text in special text inpuyt control. This text will be said by text-to-speech engine and sent unto the audio input "VSND Idev" device.