EASY APPLICATION AND FULL COVERAGE Simply plug the repellent into a wall outlet 31 to 47 inches from the floor and keep it perpendicular to the floor. For best results, equip each room with insect repellent. Indoor use onlyAdvanced pest control technology Diotec insect repellent emits ultrasonic waves of different frequencies to stimulate the nervous system of insects and mice, making them feel uncomfortable and escape gradually. Effectively repel mice, cockroaches, flies, ants, spiders, mosquitoes, mice, fleas, centipedes, beetles and other pests.Safe Repellent is non-toxic, trap-free, 100% safe and harmless to humans, children and pets. This is a physical method of repelling harmful organisms, non-toxic, environmentally friendly, and absolutely safe for children and pets. It is an insect repellent that combines advanced technology and humanistic features.Lightweight design insect repellent ultrasonic plug is portable and easy to install, plug and play. Widely used in homes, warehouses, offices, gardens, hotels, etc. Energy saving keeps you pest free all day Package contains: 1* Note:1. Please allow a little error due to manual measurement. Please make sure you don't mind before bidding.2. The color may vary due to different monitors, please understand. Note:Hello, please pay attention to your delivery address when purchasing products. If your receiving information (such as: name, street, house number, doorbell/email without name, etc. is incorrect, the order will not be delivered correctly.)