Logitech M705 Marathon Wireless Mouse, 2.4 Ghz Connectivity Via Unifying Usb Receiver, 1000 Dpi Laser Sensor, 3 Year Battery Life, 7 Buttons, Pc/mac/c | Fruugo AE
Replacement Unifying Receiver for Logitech Wireless Number Pad N305 From Kh | eBay
Amazon.com: Logitech USB 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