product name:      Double horn ultrasonic insect killerworking principle:        1. Laboratory studies have shown that ultrasound can attack the auditory and nervous systems of most common pests, causing them to develop pain and discomfort, which in turn can cause pests to abandon their food, water and shelter. These high-intensity sound waves exceed the hearing range of human ears and pets, and do not harm humans and pets.     2. Variable frequency insect repellers will not interfere with televisions, radios, electronic anti-theft alarms, fire alarms or smoke detectors, pacemakers, hearing aids or other electronic devices. Variable frequency insect repellent will not hurt plants.product description:     1. Products can drive out mice, ticks, fleas, flies, mosquitoes, spiders, and other common pests. The effective range of this product is about 100 square meters.     2. The ultrasonic sound pressure of this product is 115db.     3. The ultrasonic frequency of this product is 30-50KHZ.     4. Voltage: 110-120V or 220-240V     5. The product's plugs are European, American, British, Australian, etc.Scope of application        This product should be used indoors.
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