Logitech Unifying receiver for mouse and keyboard Logitech Unifying receiver Will work with any product that display the Unifying Logo The unifying receiver working with 6 mice and keyboards in the same time. Compatible with: Logitech wireless mouse M505 Marathon Mouse M705 Logitech Mouse M905 Logitech keyboard K340 Logitech keyboard K350 And also with Logitech Notebook Kit MK605 Logitech mouse M215