Logitech MK540 Advanced Wireless Keyboard and Mouse Combo for Windows, 2.4 GHz Unifying USB-Receiver, Multimedia Hotkeys, 3-Year Battery Life, for PC, Laptop - USB Wireless RF Keyboard - Black - USB Wireless
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Logitech Unifying Receiver for Connecting Multiple Devices
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Logitech Unifying Receiver for Connecting Multiple Devices
Amazon.com: Logitech MK470 Slim Wireless Keyboard and Mouse Combo - Modern Compact Layout, Ultra Quiet, 2.4 GHz USB Receiver, Plug n' Play Connectivity, Compatible with Windows - Graphite : Electronics