While other bat repellents may not be pet-friendly, have unpleasant odors, or limited 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 high-frequency sound waves that are designed to deter bats and other unwanted pests by creating an environment they find uncomfortable, encouraging them to leave the area. It requires no chemicals, leaves no residue, and produces no mess. One unit is effective for areas up to 800 square feet when placed in open spaces without obstructions. Enjoy a cleaner, more comfortable home environment – this repellent is also designed to 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: - Voltage: 100–240V AC, 50/60Hz - Power: 2.5W - Output frequency: 20–65 kHz Installation guidelines: Use only indoors. Do not install in outdoor, wet, humid, or excessively hot environments. For optimal performance, ensure there are no physical obstructions in front of the unit that could interfere with sound dispersion. Effective coverage: 100 to 800 square feet in unobstructed indoor areas.