(Pack of 4) Ultrasonic Mosquito Repellent, Rat and Pest Killer. Ultrasonic Mosquito Repellent. Electronic Rat Killer, Rat Mosquito, Cockroach, Flies, Ants.

Ultrasonic Mosquito Repellent - This is our advanced version, which uses the principle of ultrasonic waves to change frequency in order to stimulate the auditory system of mosquitoes and other pests, making them intolerable and uncomfortable.

Wide Coverage: Each electronic ultrasonic repellent can effectively cover a large area of 800 to 1,300 square feet. Please note that ultrasonic waves cannot penetrate walls. While our repellents work very well, if you have a larger infestation, we recommend placing our repellents in each room.

Eco-Friendly and Safe: This product is non-toxic and environmentally friendly. Our insect trap is 100% safe and effective. The ultrasonic frequency emitted by this machine is inaudible to humans and pets. Safe for children, family, and pets.

However, do not use this ultrasonic repellent if you have hamsters in your home. Ease of use - The unit should be installed 80-120 cm above the ground and perpendicular to the ground, then plugged into an electrical outlet. It can be directly plugged into a 110V AC outlet (power range: AC 90V-250V, frequency: 50-60Hz). Commonly used in homes, warehouses, shops, hotels, hospitals, offices, etc. Large areas may require multiple units.