Key Features Seamless integration with Skype without need of any special drivers or plug-in software Rings loudly on an incoming call Fully functional keypad enables you to make/receive calls even easier Hook switch allows for intuitive answering/ending Skype calls Acoustically isolated speaker and microphone to eliminate echo Full-duplex communication with crystal clear speech USB Interface PnP. No external power/sound card required Built-in headset jack Hands-free microphone and speaker Also compatible with other PC-based softphone applications, such as MSN, Yahoo Message, Xten, Dialpad, MediaRing, Net2phone and etc. Supports Windows, Linux, Mac and Pocket PC.