Mini-drone

"That would explain why the Genii looked like Swiss cheese. The mini-drones went right through ‘em."

- John Sheppard

Mini-drones were weapons created by the Lantean's during their tenure in the Pegasus Galaxy.

Overview
One planet within the Pegasus Galaxy served as a testing facility for drone technology that was used by the Lanteans to create a series of miniature anti-infantry drones. These devices were controlled by the thoughts of the wearer of a pendant that served as a key to a control interface similar to a control chair.

The details of the facility was stored in the Atlantis database, but the planet was not found until two years later by the Atlantis Expedition.

It is not known how mini-drones would have been used by the Ancients, seeing as how almost all of their battles with the Wraith took place in space, though they might have been used to prevent entry into Lantean structures as they could scan the genes of anyone within a small radius for the presence of the ATA gene and avoid them as a target to prevent the mini-drones from attacking friendlies. They are set to fly around an area in search patterns to locate any non-Ancients.

The power requirement's of mini-drones are unknown except that they have been constantly been active for over a period of 10,000 years with no signs of a ZPM being used.