Description: Product name: ultrasonic frequency conversion mosquito repellent Product power: 3W Product power supply: 90V-220V Rated power: 22-65KHZWorking mode: frequency conversion ultrasonic plus electromagnetic wave Efficacy: repel mosquitoes, flies, cockroaches, mice, etc Specifications: 1. [Working principle]: Strengthen the stimulation of pests' senses and nervous system to drive away pests. During the first and second weeks, pests are expelled from the cave, and pests may increase. This is not an increase in the number of pests. This is because pests are leaving the cave. After that, you will see satisfactory results. 2. [Safe and effective]: This product is silent, non-toxic and tasteless. Ultrasound can drive away pests without killing them. Say goodbye to mouse traps, glue traps, cockroach cars and insect sprays, without cleaning up dead insects. Ultrasonic technology will not harm children and pets. Special ultrasonic technology will not interfere with pets. 3. [Night light function]: Procuct is equipped with night light. Night lights can stimulate pests to leave the colony. At night, when the night light is on, the machine will start to work, and the soft light will make you and your family sleep soundly. Quiet ultrasound will not affect work and sleep. 4. [Product effect]: low power consumption, mute, power saving and long-term operation. Ultrasound is a low-frequency ultrasonic wave, which needs to be used for a long time. Please use it continuously to achieve a pest free effect throughout the day. 5. [Easy to use]: plug in the power supply to work, covering a large area. The ultrasonic coverage area is 1800 square meters. Since the ultrasonic wave cannot pass through the wall, it is recommended to install it in each room.