1. How to use: (1). Insert the product directly into the AC110 or 220V power socket, and the ultrasonic wave will work automatically. At the same time, the green, blue and red indicator lights will turn on alternately. (2).Press the side button to turn off the indicator light, and the ultrasonic still works normally. (3). This product should work continuously all year round and should not be used intermittently. (4). There must be no tall obstacles within 1 meter from the front of the product. 2. Matters needing attention: (1). Do not place this product outdoors, and do not place it in a place with high temperature and humidity. (2).Be sure to confirm the power supply voltage before use. (3). Since most pests live on the ground, this product should be installed as low as possible from the ground. (4). This product will start to take effect within a few days after use. Depending on the environment of use, it usually takes 2-4 weeks of continuous use to see better results. At the beginning of use, there may be a phenomenon that the mice are more active. This is the performance of the mouse being stimulated, and after a period of time, it will disappear. Even if individual mice cannot escape for a while, they will be listless, lose their appetite, and lose their ability to breed and destroy. 3. Product parameters (1).Power supply voltage: AC 110/220V 50HZ /60HZ (2). Power consumption: 0.2W (3). Ultrasonic frequency range: frequency sweep 22-65 KHZ (4). Ultrasonic decibel value: 100-110dB (5). Use range: 50 square meters (6).Material: ABS+PC