While other bat repellents may not be pet friendly, are ineffective, or have unpleasant odors, Pest Destruct Ultrasonic Bat Repellent operates silently, is odorless, and is safe for use around children and pets. How it works This ultrasonic device emits sound waves that are designed to deter bats and other unwanted pests by creating an environment that encourages them to leave the area. It requires no cleanup of deceased animals and covers areas up to 100-800 square feet depending on the layout and obstructions. Enjoy a pest-free home While primarily designed for bats, this repellent may also help deter mice, rats, flies, insects, mosquitoes, fleas, and cockroaches. We are a team that believes in our product and use it ourselves, aiming to provide effective solutions for your household needs. Product Specifications 1. Voltage: 100-240V AC, 50/60HZ 2. Power: 2.5w 3. Output audio: 20-65KHz Electrical plug-in installations: Not recommended for outdoor, wet, humid, or liquid-exposed environments. Effective coverage: 100 to 800 square feet with minimal obstructions blocking the sound waves.