Utility for Windows that monitors the activity of Bluetooth devices around you.
BluetoothView is a small utility that runs in the background, and monitor the activity of Bluetooth devices around you. For each detected Bluetooth device, it displays the following information: Device Name, Bluetooth Address, Major Device Type, Minor Device Type, First Detection Time, Last Detection Time, and more.
BluetoothView can also notify you when a new Bluetooth device is detected, by displaying a balloon in your taskbar or by playing a small beep sound.
Read more:
http://www.nirsoft.net/utils/bluetooth_viewer.html
Via Gust MEES