I'm new here, but I decided to join in the discussion, personally I'd recommend using bluetooth devices. THe 2.4 Ghz are really great... until you start using them next to a Wi-Fi hot-spot with intense traffic... I had this little issue. Used a Logitech 2.4Ghz wireless mouse with my laptop... everything was fine, until I tried sending a Linux distro from my desktop to my laptop... 50% of wireless stuffed up and the mouse becomes really laggy... to the point that the cursor just jumps randomly around the screen. Of course if you are using only wired network connection or use wireless for internet surfing and small file transfer then 2.4GHz should work fine with you.