The ultrasonic pest repeller is adopted the quality ABS plastic material for the shell. Good touch feel,sturdy and durable. The pest repeller product is adopted the advancing ultrasonic technology. Non-toxic,safe and effective It won't cause any harm to your families health. Smell-less and flavorless. It repels pest,does not kill pest. Low electric power consumption. Environment-friendly. Effective Coverage Area: 80~120 square meters. The best coverage area is less than 60 square meters. Smaller the area is,greater the effect is. The pest repeller is widely used in home,warehouse,shop,hotel,hospital,office,garden,grain depot and so on. Specifications: Condition: 100% Brand New Shell Material: ABS Main Color: White as picture Voltage: AC 110V~220V Power: 5W Frequency: 50-60Hz Effective Coverage Area: 80~120 square meters Size: Approx. 8.6 x 5.7 x 3cm / 3.3 x 2.2 x 1.1in Package Included: 1 x Ultrasonic Pest Repeller Note: 1. Please allow 0~1inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same,item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 3. This pest repeller should be installed at 80-120 centimeter away from the floor. And vertical to the floor and plug to the power socket. 4. The installing point should be avoided from carpet,curtain etc attaching sound material. Because the fabric subject will absorb the ultrasonic and decrease the pest repelling effect. 5. It's normal that the mouse and vermin will increase at the beginning of the using days. Because they are moving away from their living place after the attack of ultrasonic. 6. Don't clean the machine by strong impregnant,water or damp cloth. Use dry and soft cloth with some neuter wash to clean it. 7. Don't drop the machine and make strong striking on it. 8. Working environment temperature: 0-40 C 9. To increase the effect,please use one for each room and several of them at the goods pile-up.