Features: Made from high quality materials, weather resistant and durable. Uses sound and sonic vibration technology. Repulsive frequency of ultrasonic waves constantly changes and alternates, preventing pests from becoming immune. Nontoxic, chemical free, safe for humans and pets. Ideal for families , offices, restaurants, hotels, etc. > power: No Certification: CCC model: Power: other Voltage: 110240 Adjustable VI: Noise Customization: Yes Lifespan: Material: Acrylic Includes: 1 rodent repellent