While other bat repellents may not be pet-friendly, have unpleasant odors, or lack effectiveness, Pest Destruct Ultra Bat Repellent operates silently, is odorless, and is safe for use around children and pets. How it works – This ultra device emits sound waves that are inble to humans and create an environment that encourages bats and other unwanted pests to leave the area. It requires no chemicals, leaves no mess, and helps maintain a clean, pest-free space. Each unit is effective for areas up to 800 square feet with clear, unobstructed placement. Enjoy a more comfortable living environment – while specifically designed for bats, this repellent may also help deter mice, rats, flies, insects, mosquitoes, fleas, and cockroaches. We are committed to quality and safety, using our products in our own homes to ensure reliable performance. Product Specifications 1. Voltage: 100-240V AC, 50/60HZ 2. Power: 2.5w 3. Output o: 20-65KHz For indoor electrical plug-in use only. Avoid installation in outdoor, wet, humid, or high-temperature environments. Effective coverage: 100 to 800 square feet, depending on layout and obstructions.