Sony's open-ear headphones make it sound like you're always in a mall

For a couple years now, Sony has been trying to build headphones that let you listen to music without blocking sound from the world around you. There are already lots of headphones that try to do this in a high-tech way, by using microphones to record sound from the outside world and pumping that in over your music. But Sony is taking a decidedly low-tech approach: it's making earbuds with a giant hole in them to let sound through. The Xperia Ear are the latest incarnation. They were first shown...