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Natacha Vilson was catching up with an old friend she had bumped into on a New York street recently when, without even saying "excuse me," the friend seemed to be talking into space. Because he was using a tiny wireless headset perched on one ear that was barely visible, she didn't realize at first that he had taken a call on his cellphone and was no longer talking to her.
Ms. Vilson, a college student, was put off and finally said: "I'm talking to you, will you please take that off?"
Such mix-ups are happening increasingly as the small, robotic-looking phone headsets that perch in the wearer's ear become the latest high-tech accessory of choice.
Using a technology called Bluetooth, the devices generally are 3 or 4 inches long, weigh less than an ounce, and don't need to be physically plugged into a cellphone, freeing users from dangling cords and making it easy to keep the little pod clipped onto one ear constantly, even at home. They can connect with a phone that is as far away as 30 feet, though most users still keep their phones in a pocket, purse or belt clip.
"It is like my third earlobe," says Raj Mohammed, a technology project manager at a New York mutual-fund company.
While many users find them convenient and fun, the new headsets can create peculiar social situations. As was the case with Ms. Vilson and her friend, bystanders are often unaware that a user is wearing one. Indeed, users of Bluetooth headsets often appear to be talking to themselves.
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