From the Manufacturer Featuring hands-free versatility and professional-class performance, the MX500i 3-in-1 VoIP Headset lets you make calls in three ways: make Skype and other Internet calls through your computer's USB connection, or connect it to your cordless phone or cell phone. Ideal for on-the-go home office professionals, the MX500i offers advanced sound technologies, such as WindSmart microphone technology for reduced wind and fast-motion noise, giving you the professional-class call clarity that your work demands.