Brann's Communicator

Brann's Communicator is a communication devide players receive in order to contact Brann Bronzebeard, who will send them on a number of errants throughout the Storm Peaks beginning with Catching up with Brann and Sniffing Out the Perpetrator.

Source
The item is dropped by Tracker Thulin for the Alliance and provided by for the Horde. Players who have lost the communicator should contact Moteha Windborn (Horde) or Archaeologist Andorin (Alliance).