Well, I don't need a wireless keyboard since I predominantly use laptops. I own Logitech MX-700 mice and recently bought another one. For me, it's one of the best mice in the world. There exists a keyboard/mice combo with MX-700 from Logitech.
However, both Microsoft, Logitech, etc. recently implemented Bluetooth technology into their flagship products (such as Logitech MX-900), so check out these as well.