Pests like mice, cockroaches, and mosquitoes may upset you because they can be found virtually anywhere. Time to get rid of those annoying pests with this Ultrasonic Pest Repeller Mosquito Killer! By affecting the sensory and nerve systems of mice, rats, and insects, this ultrasonic repeller will make them uncomfortable and painful as well as force them to leave your house.       USE IN BIG SPACES: It is effective for an area of up to 100~150 Square Meters. This product is widely used in homes, warehouses, shops, hotels, hospitals, offices, rooms, gardens, hotels, etc. NO HARMFUL CHEMICALS OR POISONS & NOISELESS: It is eco-friendly, smell-less, and flavorless. Mosquito Killer is 100% safe and effective. Forget the harmful chemicals, poisons, and traps typically used in households and by insect control technicians. The pest control ultrasonic that is sent out from this machine is far away from the hearing range of human beings. EASY TO USE & AUTOMATIC CONTROL: Simply plug our electronic pest repellent into the unit and let it do the rest. Use 1 unit per average-sized room with a pest problem. Additional units will be required in larger areas. Areas such as attics, basements, garages, and large storage areas may require more than one unit. The device automatically turns on when it’s nighttime and it turns off when it’s daytime. The sensor can be monitored by swiftly turning off the automation.     Specification: Repels Bugs, Ants, Mice, Cockroaches, Mosquitoes, Spiders, Rats, and More Non-toxic& Environment-friendly Standard Wall Plug-In Ultrasonic Frequency:20~55KHZ Power Source: AC90~220(V) Power: 5W Effective coverage area: 100 - 150 square meters Color: White       TurboTech.co Guarantee: We truly believe that we offer some of the most innovative and inspirational products in the world, and we want to ensure we back it up with a risk-free ironclad 30-day guarantee.   If you don't have a positive experience for ANY reason, contact us and we will make sure that ALL your concerns are addressed and you leave 100% satisfied and smiling We have 24/7 Ticket and Email Support. Don't hesitate to contact us via e-mail or our contact form if you need assistance we're here for you.   4 GREAT REASONS TO BUY FROM US AND 4 GREAT FACTS ABOUT US… 4700+ Happy Customers Free Secured Shipping (Worldwide) Perfect Gift Ideas Guaranteed Safe Checkout Shipping Policy : All orders are shipped directly from Our Fulfillment center. The time it will take to arrive depends on the production time and availability of the products. Most orders are processed within 24 hours.