The Logitech diNovo Cordless Desktop delivers a maximum blend of comfort, convenience, and flexibility -- whether you're at your desk or on the go. It sets a new standard in design. With accents from the world of consumer electronics, it fits precisely with today's sleek PC styling. And Logitech's smart wireless technology creates a unique encrypted pairing between your keyboard, numeric pad, mouse, and your receiver, making it optimal for today's performance and security demands. Total Price Port(s) / Connector(s) Required 1 USB 4 pin USB Type A Min Operating system Microsoft Windows 2000 / XP Movement Detection Technology Optical Input device type Keypad, Keyboard Interface RF Wireless Receiver USB wireless receiver Form factor External Connectivity Technology Wireless Pointing Device Mouse Pointing Device /Manipulator:Pointing DeviceFeatures Wireless, Scrolling wheel Cable(s) Included 1 USB extension cable