Logitech MK540 Advanced Wireless Keyboard

Logitech MK540 Advanced Wireless Keyboard and Mouse Combo for Windows, 2.4 GHz Unifying USB-Receiver - USB Wireless RF Keyboard - Black - USB Wireless RF Mouse - Optical - 1000 dpi - Scroll Wheel - QWERTY - Black - Media Player, Calculator, On/Off Switch, Battery Hot Key(s) - Symmetrical - AA - Compatible with Desktop Computer for PC - 1