<p>2pcs Electronic Mosquito Repellent Indoor Fly Repellent Ultrasonic Mosquito Insecticide Home Mosquito Artifact Intelligent</p> <p>Physical Ultrasonic Repellent Technology: Uses the principle of ultrasound to change frequencies and stimulate the hearing system of harmful insects like mosquitoes, making them intolerable and uncomfortable. No stimulation to humans and pets.</p> <p>20-50khz Ultrasonic: High-frequency ultrasonic circuit, effective not only against mosquitoes, but also against most rodents, such as cockroaches, ants, spiders, mice and other insects.</p> <p>No chemical addition: No radiation, harmless, non-toxic, wide coverage, ultrasonic cannot pass through the wall. We recommend one device per room.</p> <p>Night mode: Insert the insect repellent, the LED will light up as a small night light to provide you with safety protection at night.</p> <p>Widely used and energy-saving: Can be used frequently in homes, apartments, restaurants, etc. And used for insects, mice, mosquitoes, flies, wasps, ants, spiders, fleas, cockroaches, low energy, but very effective.</p> <p>Product size: 6.1*10*3.3cm</p> <p>Delivered quantity: 2</p> <p>Warm tips: The color may be a little deviation due to light and monitor and other problems. Due to manual measurement, the product may have an error of 1-2cm. This is a normal phenomenon. Thank you for your understanding!</p>