Product SpecificationsRated Voltage: AC 90～250VOutput Frequency：50-60HzInaudible Ultrasonic Frequency: 20-65KHzOutput Power：2-3WEffective Coverage Area: 400 - 1,200 Sq. Ft./unitProduct Materials: Flame Retardant ABSWhy choose the GoldTech Ultrasonic Pest Repeller?We adopt technology to emit ultrasonic and electromagnetic waves with intelligent frequency conversion wave functions.No Poisons. No Chemicals. No Insecticides. No Dead Rodent Carcasses.Easy to use: Just plugin.Pack of 6: One package will suit most areas.Instructions1. Install the GoldTech Ultrasonic Pest Repeller 2’ to 4’ from carpet, curtains or any sound-absorbing material that may reduce their effect.2. Ultrasonic sound can't penetrate furniture, cabinets or walls. Keep ample space around the area where it's plugged in. To increase the effectiveness, you should use several devices in larger areas or where the pests are more common.3. It's normal that the pests and vermin will increase at the beginning of use. They are seeking other shelters because they are under attack from the ultrasonic and electromagnetic transmissions.4. Reduction in pest activity should occur within 2-3 weeks.5. Complete protection should be achieved in 4 weeks.What to Expect from The GoldTech Ultrasonic Pest Repeller.√ Week 1: Immediate impact on the pests - they will run away and seek shelter from the ultrasonic and electromagnetic transmissions.√ Week 2: The pest's auditory system and nervous system are irritated and they will leave the protected area.√ Week 3-4: The pests will permanently leave the protected area.Tips: To keep the pest from coming back continued use is recommended.Package Includes:6 x GoldTech Ultrasonic Pest Repellers1 x Instruction SheetStatements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.