The Frisby USB Notebook Mouse Internet Phone is a very convenient device to have easy access to your skype call rather then trying to find a headset or microphone that works as both a notebook mouse and a USB phone. The Mouse Mode works exactly like a standard 3-button USB optical mouse while the Phone Mode is activated when the phone rings through the mouse to answer the incoming call. When the phone rings simply press the answer key and pick up the mouse/phone to answer the call or indeed press the scroller wheel to activate the speakerphone. A built-in headphone connection is also provided if the user prefers to use a headset.The Skype Mouse doubles as a USB Mouse and a USB Skype Phone connected to your computer, and switch seamlessly between the two when the mouse is used as a phone. To switch to phone mode, simply press hands free switch button. The skype mouse features skype contact list, call list, call history, time and caller ID display on LCD screen. The mouse seamlessly integrate with Skype and several other VoIP services, and even supports functions like hands-free dialing, speakerphone, and multiple ring tones. When in mouse mode, the 800 dpi optical sensor on the bottom offers mousing precision. Built-in independent sound chip with volume control offers full duplex sound technology with volume control for superior sound quality similar to conventional phones Allows easy access to free Internet calls using either the earphone or speakerphone setting so use it with or without headphones .