Latest Ultrasonic Technology New electromagnetic and ultrasonic frequencies for better effect to better disturb and irritate the nervous system of pests, which can effectively keep away mice, cockroaches, ants, spiders, vermin, mosquitoes, insects, flies, fleas and other annoying pests. /p> No chemicals added This type of repellent is used to drive away pests by emitting ultrasonic waves. However, these ultrasonic waves are invisible and harmless to humans and pets. At the same time, it does not contain any chemical substances and harmful radiation, so it can be used safely. Wide coverage area It spreads over a large area and can occupy an area from 80 to 120 m2. Can be placed in the living room, bedroom, kitchen, bathroom, etc. We recommend installing one device for each room. Easy to Use Simply plug the pest killer into any electrical outlet (at least 30cm above the floor) to to serve. You can usually see results in 3-4 weeks, depending on the level of infestation. Product Description This state-of-the-art electronic insect repellent hunts rats, crickets, spiders, flies, fleas, ants and other annoying animals with a frequency wave ranging from 22 to 65 kHz. Product Features: 1. It is designed to repel all pests and rodents such as rats, crickets, spiders, mosquitoes, flies, fleas, etc. 2. This pest killer can be used anywhere in the house, such as kitchens, bedrooms, basements, garages, warehouses, etc. 3. Since ultrasonic waves cannot penetrate walls and solid objects, we recommend that you place them in the room. Additional pest control should be added for areas with more pests. 4. Simply insert the plug into the socket and the product will be in normal working condition. Product specifications: Shell color: black and white Shell material shell: ABS plastic Frequency of sound waves: 22-65 KHz AC90-250V 50/60HZ working voltage Power: 5W Package includes: 1 * Ultrasonic Pest Repeller 1 * User Manual Note: ; 1. Keep them out of the reach of children. 2. Do not cover the surface with objects, so as not to affect its effect. 3. Do not use water or damp cloth for cleaning. 4. The effect of this product should only be visible after two or three weeks. 5. In the earlier period after use, if there is a significant increase in the activity of rats, pests and other rodents, please don't worry, it's normal. Because the mice and insects hiding in their nests were irritated by the ultrasonic waves and fled their previous hiding places.