100% SAFE AND EASY TO USE: The Bell & Howell Ultrasonic pest repeller is 100% safe humans and pets! It contains no harmful chemicals and is odor free! You will no longer need exterminators, mouse traps or any other messy tactics generally used to get rid of pests. All you have to do is plug it in an outlet! HELPS IN ERADICATING ALL TYPES OF PESTS AND RODENTS FROM YOUR HOME: The Bell & Howell pest repeller helps eradicate all types of pest and rodents like mice; rats, spiders, ants, and roaches. This will shield your home from unwanted mammals, making your home or office a more environmentally friendly place without causing anybody to feel uncomfortable HOW IT WORKS: The Bell & Howell Ultrasonic Pest Repeller features a mix of highly-effective ultrasonic frequencies, being extremely irritating to rodents and insects thus causing them to scramble to find a peaceful area, and will be forced to leave your home. PACK OF 8 MULTI SIZE: The Bell & Howell pest repeller comes in 4 different Sizes for a total of 2 of each size. The micro design is perfect for counter tops. The classic design makes a great fit for hallways ,basement & attics. The macro design which includes an EXTRA OUTLET! makes it very convenient to use in bedrooms and living room and 2 units come with a dusk to dawn night light that turn on once the room is dark via sensors EFFICIENT, SILENT, AND ODORLESS: unlike other methods of pest control, these pest repellers are silent, don’t use any chemicals or require upkeep INTELLIGENT VARIABLE TECHNOLOGY : the variable technology frequency emits waves in constantly changing wavelengths to ensure that pests do not get immune to the sounds. With these sounds not letting up rodents and insects will want to leave your home. A BRAND TRUSTED FOR OVER 110 YEARS: Choosing Bell+Howell is choosing a reliable and trusted brand with over a century of bringing you the most inovative household solutions for your every day needs. We are EPA registered and UL tested so you can feel secure with your choice! The bell howell ultrasonic pest repeller are a fast and effective way to drive out pest. Bell+Howell have been technology leaders for over 110 years, featuring a wealth of products harnessing cutting-edge technologies to meet everyday challenges. This chemical and odor-free pest control system effectively repels ants, spiders, roaches, mice, rat and other common household pests without the need for sprays, foggers, traps or powders, making it the best pest defense . The Bell and Howell ultrasonic pest repeller broadcast uses variable ultrasonic sound waves that drive out unwanted pests without disturbing people or pets, even inside the treatment areas. The device is equipped with an LED indicator that lets you know when the unit is working. The Bell Howell pest repeller 8 pack complete home kit also includes 2 large units that feature an extra AC outlet, 2 units with a nightlight that switches on automatically when dark, 2 medium standard units and 2 micro units suitable for tight places. Each pack includes 8 plug in pest repellers so you can spread them out among various rooms to treat problem areas with ease. They plug into standard wall outlets for easy use. Say goodbye to raid light traps, cockroach killer, electric traps, and the like. With this powerful repellent there is no safe place for mice, rats, rodent, spider, ants, mosquitos, nats and more.