1 Pack Electronic Indoor Pest Repeller & Insect Repellent Plug-in for Mice, Cockroaches, Spiders, Mosquitoes

This product emits sound waves so that the auditory system and nervous system of mosquitoes and rodents receive interference stimuli to drive them away. It is normal for mouse/mice and bugs to increase at the beginning of the days of use. It will be effective in two to three weeks of fleeing residence after being attacked by the ultrasound