Product Specifications: Package Includes: 6 x pest repellent ultrasonic Material: ABS Weight: 7.52 ounces (2 pack) Input Voltage：90~250V Effective Coverage Area: 800-1200 sqft Note: 1. Normally, during the initial period of use, as they will leave the habitation after being attacked by the ultrasonic waves! Ultrasonic pest repellents do not work immediately like chemicals and it may take 2-3 weeks to see a large degree of effect. 2. It is normal to see a slight increase in the number of pests after installation as they will be flushed out of the walls and their shelters. 3.Keep distance from carpet, curtain and any sound absorption material that may reduce the effect, usually 30 centimeter away ,and should be vertical to the floor and plug to the power socket.
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