Emergency personnel need the latest in radio, GPS, wireless, and cellular connectivity to do their jobs. Now researchers at the Ilmenau University of Technology in Germany have developed flying quadcopter robots that join and assemble an ad-hoc wireless network in the event of a disaster, Engadget reports.

When joined together, the robots can offer both Wi-Fi and cellular access to emergency people on the ground. They're built with off-the-shelf parts, including a GPS radio and a VIA chipset, and come in a kit that includes everything but the battery for about $380 each, the report said.

The battery is a killer, though—it costs about $1,200 and only lasts for 20 minutes of flight time, although once the thing finds a place to land, it can work for hours after that on the same charge. A robot will be on display in FutureParc hall at CeBIT, according to the report. This is easily the coolest thing I've seen all week.