Logitech Unifying Receiver for Connecting Multiple Devices
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
Logitech MK545 Advanced Wireless Keyboard and Mouse Combo
Logitech MK545 Advanced Wireless Keyboard and Mouse Combo
Logitech K270 Wireless Keyboard with Unifying Receiver
Amazon.com: Silicone Keyboard Cover for Logitech Bluetooth Multi - Device Keyboard Cover K380 Ultra Thin Protective Skin (Transparent) : Electronics
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