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Neil Harbisson could not see any colours at all - only shades of grey since he was born.
So he had a device, which he calls an "eyeborg," connected to the bone on the back of his head to act as a third eye.
The device reads colours - including dozens of shades that human eye cannot see - and turns them into sound waves in his skull.
Mr Harbisson won a battle with the British Passport Authority to have his passport picture showing his antenna(天线).
The victory came after he successfully argued that the antenna, and he has worn the device for 10 years, was not a piece of technology but part of his body.
Mr Harbisson said: "It slowly became a part of my life. Now it's just a body part and an extension(扩展) of my senses.
"I don't feel I'm using or wearing technology, I feel that I am technology."
His antenna becomes more powerful recently, it allows Mr Harbisson to receive colours from all over the world - and even from space.
He said: "Now there are five people in different countries that have direct connections to my skull and if they want to share a colour they're seeing they can use their mobile phone. So I feel like I have an eye in each country.
"What I did two weeks ago was I connected to a satellite, so I could sense the colours in space, because there are colours that we can't receive here that exist in space."
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