How it works The Ultrasonic Pest Repeller targets a variety of pests, including mosquitoes, ants and rats, using electromagnetic and ultrasonic sound waves that only pests can hear. The device doesn’t ...

Researchers have found a way to get rid of cockroaches over a meter away with the help of a robot. The robot was programmed to shoot laser beams to zap cockroaches up to 1.2 meters in the distance.