Product Name: New Ultrasonic Mosquito Killer Material: Flame Retardant ABS Material; Outer package: blister package Size: 90*56*50(mm) Color: ivory Product weight: about 100 grams Working speed: 5W Power supply voltage: AC180V-250V/50HZ AC90V 110V/60HZ Output frequency: 20KHz -45KHz Electromagnetic wave frequency range: 0.8Hz-8Hz Operating range: 80-120 square meters Scope: generally can be used in a variety of environments It uses ultrasonic and electromagnetic double chips to operate at the same time, disorients the auditory and nervous systems of parasites, and repels them quickly and effectively. It can control most flying and crawling pests, such as mosquitoes, spiders, bedbugs, cockroaches, mice, fleas, ants, fruit flies, etc. Safe for Humans and Pets - The Ultrasonic Mosquito Repeller is completely based on physical methods to eliminate pests. It constantly emits ultrasonic waves, which makes pests uncomfortable and flees the house. Compared with traditional pesticides, ultrasonic insect repellents are non-toxic, tasteless and harmless to humans and pets (except pets such as hamsters) and safer. Wide effective coverage - Ultrasonic insect repellents can work in a confined space up to 1100 square feet. It is widely used in homes, warehouses, offices, gardens, hotels, etc. Ultrasound cannot penetrate walls and solids. It is recommended to place this insect repellent vertically 20-80 cm above the ground. Equipping each room with insect repellents achieves the best results. Easy to use, plug and play - just plug the electronic pest control system into a power outlet, no tools required. Make sure there are no obstructions such as curtains or cabinets covered in mosquito repellent. It is recommended to crawl 10-30 inches from the ground and 31-47 inches to eliminate flying insects. Most clients see results within 2-3 weeks. Then we can say goodbye to parasites. Safety Precautions - Do not use this latest insect repellent outdoors, in hot or humid environments, and keep children and pets away. The typical effect can last 3-4 weeks depending on the number of infections.