Product Description: This ultrasonic pest repeller-controlled electronic rodent repeller uses powerful ultrasonic waves to repel insects, mice, cockroaches, rodents, spiders, ants and rats, while maintaining complete safety for humans and pets. feature: By continuously emitting powerful ultrasonic waves, these ultrasonic waves can drive away pests, but they are completely inaudible to humans and pets. It is non-toxic and harmless to humans and pets, and is a substitute for toxic chemicals and dangerous traps. The maximum protection area of ​​each unit is 80-120 square meters. Low power consumption, suitable for long-term operation. Will not interfere with the operation of radio, TV or other electronic devices. specification: Color: white + black Material: ABS Plug type: US/EU/UK/Australia plug Power supply: AC 90V-250V, 50-60Hz Power: 5-6W Ultrasonic frequency: 22-65KHz Effective range: 80-120 square meters Working temperature: 0-40°C packing list: 1/2/3/4/5/6/7/8/9/10 *Ultrasonic insect repellent notes: 1. The machine should be installed at a distance of 80-120 cm from the ground. And plug it into the power socket perpendicular to the floor. 2. Avoid placing the installation location on the back of the curtain, Will affect the frequency of refrigerators and other furniture. 3. Generally, rats and pests will increase in the first few days of use. Because they were leaving their homes after being hit by ultrasound. 4. Do not use strong soaking agent, water or damp cloth to clean the machine. Use a soft dry cloth and wash with a neutral lotion. 5. In order to improve the effect, you should use multiple machines in the warehouse Or the goods are piled up, several rooms. On the contrary: 1 inch = 2.54 cm or 1 cm = 0.393 inches