The Bell + Howell UltraSonic Pest Repellers 6 Pack Complete Home Kit delivers fast, effective indoor pest control using advanced ultrasonic technology. This plug in pest repeller set includes micro units, classic units, and outlet-equipped repellers designed to protect every room in your home. Each ultrasonic repeller emits multiple frequency sound waves to help deter mice, ants, spiders, roaches, and other common household insects without chemicals, toxins, or pesticides. The compact design fits kitchens, hallways, basements, attics, bedrooms, and living rooms while providing continuous 24/7 protection. Safe for families and pets, this easy-to-use electronic repellent system offers a clean, odorless, non-toxic alternative to sprays and traps while delivering complete room coverage with reliable, wide-angle ultrasonic performance.