Computer calling kit. Easy to use – just connect it to the speaker and microphone ports on your PC. Works with VoIP applications such as Skype, PC-based videoconferencing, Web conferencing or nearly any other voice communication on a PC. Multiple users can participate on your end of the call, boosting productivity. Cable is included with the SoundStation2W EX. It also is compatible with the SoundStation IP 7000, SoundStation Duo and SoundStation2 (display and EX models only).