Logitech Unifying Dongle NANO USB Receiver.
Compatible with: Logitech wireless mouse M505, Marathon Mouse M705, Logitech Mouse M905, Logitech keyboard K340, Logitech keyboard K350, Logitech® Wireless Keyboard K320, Logitech® Notebook Kit MK605, Logitech mouse M215. Also:Works with Mouse MX M905 M950 M505 M510 M525 M305 M310 M315 M325 M345 M705 M215 M185
When you receive the new receiver, you must pair the new receiver to your mouse or keyboard.
Package Content:
1X Logitech Unifying NANO USB Receiver (C-U0007 or C-U0008)