Amazon.com: Logitech 920003051 K270 Wireless Keyboard, USB Unifying Receiver, Black : Electronics
Logitech Unifying Receiver for Connecting Multiple Devices
Amazon.in: Buy Logitech MK235 Wireless Keyboard and Mouse Set for Windows, 2.4 GHz Wireless Unifying USB Receiver, 15 FN Keys, Long Battery Life, Compatible with PC, Laptop - Black Online at Low
Amazon.com: Logitech 920003051 K270 Wireless Keyboard, USB Unifying Receiver, Black : Electronics