Got to love technology, especially when it is used by the good guys on the bad guys.

Congratulations to the security personnel on the Seabourn Spirit and their use of the sonic cannon on the invaders of the ship.

The crew of a luxury cruise ship used a sonic weapon that blasts earsplitting noise in a directed beam while being attacked by a gang of pirates off Africa this weekend, the cruise line said Monday.

The Seabourn Spirit had a Long Range Acoustic Device, or LRAD, installed as a part of its defense systems, said Bruce Good, a spokesman for Miami-based Seabourn Cruise Line. The Spirit was about 100 miles off Somalia when pirates fired rocket-propelled grenades and machine guns as they tried to get onboard.

The subsidiary of Carnival Corp. was investigating whether the weapon was successful in warding off the pirates, he said. The ship’s captain also changed its course, shifted into high speed and headed out into the open sea to elude the pirates, who were in two small boats, he said. He had no further details.

Device maker American Technology Corp. said earsplitting “bangs” were directed by trained security personnel toward the pirates. That, combined with ship maneuvers, caused the attackers to leave the area, the company said.

The LRAD is a so-called “non-lethal weapon” developed for the U.S. military after the 2000 attack on the USS Cole off Yemen as a way to keep operators of small boats from approaching U.S. warships.