The "signal sniffer" being used in the Nancy Guthrie investigation was mounted on a helicopter on Monday.

Yet, despite its convenience, Bluetooth has a well‑known limitation: range. The connection between a device and its source—whether it's a phone streaming music or a sensor reporting data—can stretch ...

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 ...

The first iteration of Bluetooth, version 1.0, was released with basic wireless connection capabilities but suffered from significant limitations in connectivity and interference handling. Bluetooth 1 ...

Your Bluetooth isn't broken.

Add Yahoo as a preferred source to see more of our stories on Google. Investigators are using a tracking device called a "signal sniffer" that can detect signals emitted from electronic devices as the ...