ENHANCED ULTRASONIC TECHNOLOGY AND NEW DESIGN: This pest killer uses enhanced ultrasound to repel mice, spiders, rats, cockroaches, ants, mosquitoes, fleas, flies, bugs and insects. New design with smart chip and soft night light, effective for mice and insects and also suitable as a night light. KEEP PEOPLE AND PETS SAFE: Ultrasonic pest control device can only be heard by parasites like mice. Humans and animals will hear nothing and no harm to pregnant women and children. No corpses to clean up and low power consumption, definitely a green killer. PLUG AND WOKRS: Easy to use, just plug it in and it will do the job for itself. Suitable for the elderly because there is no difficult installation. No need to pay for another expensive pest control solution, this item is effective and economical. Please note that if you have an insect or a hamster as a pet, please do not use this product. LARGE COVERAGE AREA - With its IMPROVED coverage area, a single unit can provide up to 1,200 square