Electronic Ultrasonic Anti Mosquito Cockroach Killer Repeller

This all-in-1 mosquito & pest repeller works by continuously transmitting a powerful range of ultrasonic sound waves in low-frequency electromagnetic waves, fixed-frequency and conversion-frequency ultrasound wave in that disturbs pests’ Nervous system and Hearing System. This makes them agitated and can’t bear the stress, they just run away. The Low-Frequency Electromagnetic waves can go through the walls with the same efficiency. This repeller effectively drives away mosquitoes, cockroaches, spiders, flie