Invincible insect repellent is true or not.

According to the data query, invincible insect repellent can effectively repel mosquitoes, fleas, flies, cockroaches and so on. Insect repellent upgrades to repel mosquitoes, which is safe and radiation-free. Can effectively kill mosquitoes, flies, cockroaches and ants.

The working principle of insect repellent is to use ultrasonic waves. For example, the ultrasonic mosquito repellent, the mosquitoes that bite people are generally pregnant female mosquitoes, and the male mosquitoes do not bite people.