The search for Nancy Guthrie has taken a high-tech turn. The Arizona police department is now flying over the Tucson, Ariz., desert with a Bluetooth signal detector, also known as a signal sniffer, in ...

Using a Bluetooth headset with your iPhone makes it possible for you to maintain contact with clients and co-workers when you're on the move. However, a headset that's on the fritz or won't connect to ...