4 pcs Ultrasonic Rodent and Insect Repellent, Electric Fly Repellent, Indoor Mouse Repellent Device, Mosquito, Cockroach, Ant, Spider, TRIMEC

General Description This advanced ultrasonic repellent uses varying frequencies to stimulate the auditory system of mosquitoes and other pests, making them unbearable and uncomfortable. It is ideal for use in various environments such as homes, warehouses, shops, hotels, hospitals, and offices. For optimal effectiveness, it is recommended to use multiple units in large areas. Technical Specifications Ultrasonic Frequency: 22~65 kHz Input Voltage: AC 90V~250V / 50Hz~60Hz Power: 5W Effective Coverage Area: Approximately 80-120 square meters (800-1300 sq ft) Installation For proper installation, place the device vertically at a height of 80-120 cm from the floor and plug it into a power outlet. It is advisable to use one unit per room for best results, as walls and furniture can weaken the effect of the ultrasonic waves. Usage: This repellent is easy to use: simply plug it in. Please note that it may take 1 to 3 weeks to see results, and a temporary increase in insect activity may occur at the beginning of use. Other information: Package contents: 4 ultrasonic repellents and 1 user manual. Environmentally friendly and non-toxic, with no chemicals or sprays. Do not use if you have a hamster as a pet. Ultrasonic waves do not penetrate walls.