"I'm not sure what to make of this and obviously I've only been sitting with it for a few hours now in a figurative sense. But I don't know what I expected, but this is not what I expected," says CNN's John Sutter. "It looked really good to me", he adds about the device that shows when you're focused on something or distracted by other things. The headset will be available later this year at $1,000 (roughly £800) according to some reports.