A device used to repel unwanted and harmful household cockroaches that usually harms foods which leads to food poisoning but without the use of chemical-based solutions instead, a detector (passive infrared sensor) that automatically activates when cockroaches are detected then sends signal to an ultrasonic speaker that emits 40KHz frequency which can repel cockroaches. Helping repelling cockroaches without harming the environment and non-toxic to human health.