My close friend was in the hospital fighting for his life after his fifth surgery to address a brain aneurysm before age fifty. When he recovered he blamed his heavy and unsafe cell phone use for causing his illness and disability, which was out of character for my pro-business friend. He had been a road warrior computer engineer, living in airports and constantly talking with a cell phone radiating centimeters away from where his blood vessel burst. Serious medical research papers have suggested this exact risk many have recognized for over a decade. Of course, we will never know whether he was correct in his case, but it was enough to make me look for safer ways to use wireless technology.
Wired headsets do the trick, but Bluetooth is better. While wired headsets are simple to attach, require no configueration, work great and are safe, there are more than a few situations where the freedom of movement associated with Bluetooth is worth the extra effort and cost. For example, my wife likes talking on the phone while cooking, but doesn't have a handy pocket to hold the phone. It rests comfortable in the charger while my wife chats via her Bluetooth headsets.
Bluetooth is low power that is nonetheless all that is needed to communicate across the room. We believe that it is much lower risk than pressing your cell phone device against your ear that at any point could be putting out maximum power to reach a tower miles away.
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