Two drones were demonstrated Saturday at the multiagency Urban Shield exercise in Dublin. Their specifications and capabilities:

Size: 28 inches wide, 28 inches long, 8 inches deep

Weight: 3.7 pounds

Power: Four propellers driven by a battery that can go from 25 to 45 minutes between charges

Height: 400 feet

Range: 2,000 feet line-of-sight

Features: Autopilot, auto-landing

Weather restrictions: Rated for up to 33 mph winds; light rain, snow and smoke

Imagery: Capable of broadcasting high-definition video and pictures that can be distributed wirelessly to any device, recorded and stored in a portable memory stick

Cost: Between $40,000 and $60,000

Manufacturer: Aircover Integrated Solutions Corp., in conjunction with Lockheed Martin Skunk Works.

Contact Gary Peterson at 925-952-5053. Follow him on Twitter at twitter.com/garyscribe.