You can turn off all of your radios as far as the soft toggle switches in your Settings app allow you to do, but if Apple decides that your radio antennas shoul

You can turn off all of your radios as far as the soft toggle switches in your Settings app allow you to do, but if Apple decides that your radio antennas should still be active and responding to beacons, they will. And the user won't be aware. Not sure if iPhones will do this if you've explicitly disabled bluetooth, but they will send data around even when "turned off". Likewise, to actually disable bluetooth, you have to click on the toggle button in the draw-down settings screen 2 times.