Ultrasonic Pest Mouse Repeller Indoor 4 Pack Overview A plugin ultrasonic repeller kit with four units designed to discourage rodents and common household pests using variable ultrasonic and dualwave frequencies. This chemical, trap approach is intended for continuous indoor use and requires no cleanup of trapped or poisoned pests. Key benefits Chemical pest control: uses ultrasonic sound rather than poisons or sticky traps. Variable frequency technology: upgraded frequency conversion dualwave output reduces the chance pests adapt to a single tone. Wide coverage: each unit is effective for an area up to 1700 square feet when used under recommended conditions. Easy to install: no tools required; plug into a standard wall socket at a height of 6 to 47 inches from the floor. Low maintenance: continuous operation with no need to handle deceased animals or bait. How it works Each unit emits ultrasonic and variable wave signals intended to interfere with pest behavior and make the protected area less hospitable to mice, rats and other small pests. The pattern and frequency change over time to maintain effectiveness. What is included Ultrasonic rodent repeller x4 Suitable locations and applications Kitchen and pantry: place units near entry points or food storage areas to discourage rodents from settling. Garage, basement or warehouse: install units near doors, vents or storage zones to reduce pest activity in large indoor spaces. Offices, restaurants and apartments: use discreet plugin units in rooms and corridors to help maintain a pest environment without traps or poisons. Installation tips Plug each unit into a wall socket 6 to 47 inches above the floor for coverage. Use one unit per room or per open area; place units where sound is less likely to be blocked by furniture, curtains or shelving. Keep units powered continuously for ongoing effect. For large or multiroom spaces, position multiple units to ensure overlapping coverage. Notes and limitations Effectiveness depends on room layout, construction materials and the type and severity of infestation. Designed to be inaudible to most people and many common household pets, but responses can vary by individual sensitivity. Intended for indoor use only. This 4 pack provides a simple, plugin alternative to chemical or trapbased rodent control for homes, offices, restaurants, warehouses and apartments.