Pestbye Battery Operated Cat Repeller V2 - Easy To Use Ultrasonic Cat Scarer with HyperResonance Frequency HYPER RESONANCE FREQUENCY SYSTEM - Most effective frequency system that repels cats and larger animals, without harming pets or humans. ALL IN ONE - Detects and repels cats and other similar sized animals; no need for a back up system! RAINPROOF, VERSATILE AND EASY INSTALLATION - Simply instert the batteries and push into the ground of your backyard or garden. SAFE, HUMANE ANIMAL DETERRENT - Avoids the need for expensive sprinklers, dangerous chemical deterrents, traps, and hazardous electric fences that may cause serious harm to animals. COVERAGE AREA - Covers ground up to 32 ft.