Amazon.com: Logitech Unifying Receiver, 2.4 GHz Wireless Technology, USB Plug Compatible with all Logitech Unifying Devices like Wireless Mouse and Keyboard, PC / Mac / Laptop - Black : Electronics
Amazon.com: Logitech MK270 Wireless Keyboard And Mouse Combo For Windows, 2.4 GHz Wireless, Compact Mouse, 8 Multimedia And Shortcut Keys, For PC, Laptop - Black : Electronics
LOGITECH MK270 WIRELESS KEYBOARD & MOUSE COMBO | Lin Haw International
Logitech K270 Wireless Keyboard with Unifying Receiver