Golden Retrievers

The "Golden Retrievers" are mobile independent tracking drones created by S.H.I.E.L.D. scientists Leo Fitz and Jemma Simmons.

Usage
The Golden Retrievers, like their forensic evidence counterparts, the D.W.A.R.F. Drones, come in a set of eight, and are designed for independent operation while sending their information back to their user.

The Retrievers are tracking devices that launch from their case and disperse in different directions while searching for their programmed target.

Presumably, like the D.W.A.R.F. Drones, the Golden Retrievers scan for visual data, scents and heat signatures from their target.

When the retrievers find their target, the location information is immediately sent back to the unit's operator. The Golden Retrievers get their name from the golden glow they project while in use.

History
Leo Fitz used the Golden Retrievers to track Agent Melinda May when she left the bus in order to protect civilian Hannah Hutchins from the dimensionally-shifting Tobias Ford.