Latest Chip Technology - Adopting the latest double chip, this insect repellent will emit ultrasonic waves of different frequencies to stimulate the nervous system of insects and mice, making them feel uncomfortable and run away gradually. Pack of 6 is easy to use - simply plug the pest control repeller into an outlet. Please be sure to install it vertically, 80~120cm from the ground. And make sure there are no obstacles like curtains or cabinets in front of the repellent. Suitable for Many Pests and Places - The ultrasonic repeller can be used in various places where bait cannot be used, such as bedrooms, bathrooms, garages, kitchens, offices, warehouses, flour mills, food processing plants, furniture stores, etc. or insecticides . Wide Effective Coverage - Using imitation sound wave technology and the latest ultrasonic insect repellent, it can effectively cover an area of 800-1200 square feet. For best results, equip each room with one type of insect repellent. SAFE FOR CHILDREN AND PETS - This pest control is composed of high-quality ABS fire-resistant material and consumes less than 5 watts. For children/pregnant women/elderly/pets, the insect repellent is safe and will not interfere with household appliances.