Usage tips: Smart technology: This ultrasonic repeller emits ultrasonic waves of different frequencies (25 kHz–65 kHz) to irritate the nervous system of insects and rats, making them feel uncomfortable and gradually flee. Intermittent changes in ultrasonic frequency prevent them from developing immunity and adaptability. Large coverage: Each ultrasonic repeller can cover up to 120 square meters. It is recommended to install this device vertically at a distance of 20 to 80 cm from the ground. For best results, equip each room with a pest repeller. Safe and environmentally friendly mosquito repellent: Non-toxic, no chemicals, no radiation, low power consumption, no noise and safe for humans and pets. You can say goodbye to mouse traps, mosquito traps, mouse mats, pesticides and insect sprays etc. No batteries needed, which saves you a lot of money and gives you a safe and environmentally friendly home. Super quiet and effective mosquito repellent: The ultrasonic repeller works with low-frequency ultrasonic waves, so it allows you to fight pests completely silently and does not disturb you or your pets. Please note that it requires some time. Depending on the environment, the response time varies, usually 2–6 weeks. We are here to help you keep pests away. Easy to use: just plug the repeller into the power outlet and let it do the work. The repeller immediately repels pests without killing them. No batteries needed, which saves you a lot of replacement. Features of this mosquito repeller - safe for mosquitoes. Safe to use for pregnant women and babies. - No sound to drive away pests. No batteries required. Just plug into the wall socket, easy to use. - Repels many types of pests, mosquitoes, mice and rats continuously and powerfully. -Effective for an area of up to 800–1200 square feet. A permanent process to deter pests Week 1–2: Delay period – This period begins to affect and continuously disturb the parasites so that their auditory system is irritated. Week 3: Effective period – The parasites' non-immune and nervous systems have been damaged, reducing their chances of survival, making it unbearable for them and causing them to leave your home. 4 weeks: Stable period – The parasites' reproductive capacity is greatly affected, and you can easily say goodbye to them. Tip: To prevent the parasites from returning, it is recommended that you continue to use the product. Specifications Weight: 68 g*6 pcs Power: 3 W Standard wall outlet Effective coverage area: 800–1200 square feet Note: 1. The electronic mosquito repellent should not be placed near carpets, curtains or other damp materials. 2. The mosquito repellent is safe for pets such as dogs, cats, birds, fish and rabbits. However, it is not recommended for pets such as hamsters, gerbils, guinea pigs, tarantulas, chinchillas and other rodents.