Logitech Unifying receiver (M/N:C-U000) Will work with any product that display the Unifying Log The unifying receiver working with 7 mice and keyboards in the same tim. Compatible with: Logitech wireless mouse M505 Marathon Mouse M705 Logitech Mouse M905 Logitech keyboard K340 Logitechkeyboard K350 Wireless Number Pad N305 Logitech Wireless Desktop MK710 Logitech Wireless Keyboard K320 Logitech Notebook Kit MK605 Logitech mouse M215.