Lenovo 4X30H56796, Professional Wireless Keyboard and Mouse Combo, Plug-and-Play, 2.4GHz Wireless, 3-Zone Keyboard, Dedicated Media Keys, Dedicated Full-Size Mouse, 1600dpi Laser Sensor, Connect with 1 USB Nano Receiver, 4-Way Scroll Wheel, 2 Years

The Lenovo Wireless Keyboard and Mouse Combo Kit features wireless connectivity to your computer system, so you can type and control the mouse cable-free. The keyboard and mouse connect to an included nano USB receiver and are powered via an included set of batteries. The full-sized keyboard sports dedicated media controls and adjustable tilt legs as well as a spill-resistant design. For accurate cursor controls, the mouse is equipped with 1600 dpi laser sensor and has an ambidextrous form factor for left- or right-handed use. Additionally, the mouse comes outfitted with a 4-way scroll wheel that lets you scroll quickly up and down as well as left and right while viewing spreadsheets and websites.