Material: ABS White color Power: 3W Voltage: AC90-250 Output power: 22- 50HZ Effective coverage: 80-120m2 Precautions: 1. The machine should be installed 20-80 cm from the floor and should be inserted into the outlet perpendicular to the floor. 2. The installation point should be avoided as much as possible from sound-absorbing materials such as carpets and curtains to prevent the reduction of sound pressure from reducing the sound range and affecting the insect-repellent effect. < p>3. A few days before use, if there is a significant increase in activities such as rats and pests, it is a normal phenomenon, because rats usually hiding in the nest, pests fled from their hiding places. origin after being attacked by ultrasonic and electromagnetic waves. 4. Note: Moisture and water resistant. 5. Operating environment temperature: 0-40 degrees Celsius. 6. If it is placed in a warehouse or a place where items are stacked, or on a multi-room floor, a few more units should be placed to