Goodes Pest Control Ultrasonic Home Pest Reject Repellent Repeller Effective Electronic Nature Insect Control Indoor with Night Light 220V Plug in Wall for Ants, Roaches, Spiders, Mosquitoes Easy to use,with Auxiliary outlet and safety cover. Just plug them into 220V or 110VAC outlet and their ultrasonic technology emits a constantly-changing signal that drives pests crazy Environment-friendly:This Pest Repeller uses both ultrasonic and electromagnetic technology to effectively repel mice, rats, spiders, ants, roaches and other pesky rodents and insects without harmful chemicals or traps Free-Noise and Safety,From the moment you plug in these units, their built-in speakers release ultrasonic sound waves that are unheard by humans but sound like a never-ending accounting presentation to most pests. But are virtually inaudible to you and your pets Upgaraded Version and built in LED night lights.It has a higher power and frequency ranges ,also protect above 120sqm ,pest repeller for walls and control indoor Safty Widely Application.Plug in and drive pests out with the Ultrasonic Pest Repeller. Safe for pets, this device uses ultrasonic waves to get rid of ants, mice, rats, spiders, roaches and more. Perfect for use in homes and offices.Faster and more Effective if plug the device in room kitchen and garden together