Norwegian designer Thomas Heyerdahl sells iDiamond ear, 18 carat golden ear speakers with 204 tiny diamonds. It goes for $6,400 (en). Technology disappears, and everything we still carry on our body becomes some kind of jewelery. Like the glasses, a mobile phone, or a watch, the ear speaker also is completely refreshed. Soon ear speakers will be wireless, and then they will also let other sounds come through. We then will start wearing them permanently. Either completely hidden, very deep in our ear, or the opposite: clearly visible, like this type of ear speakers.

• in Dutch