Usage Tips:* Safe And Eco-Friendly: The Ultrasonic Pest Repeller Will Not Hurt Any Animals, Plants And Human Beings.There Are No Messy Chemicals Or Pesticides, No Traps, No Dead Animals.The Solar Ultrasonic Animal Repeller Gets Rid Of All Animals By Emitting A Mixture Of Ultrasound And Powerful Flashing Led Strobe Lights, Scaring Intruding Animals And Pests Out Of The Area. * Coverage Area - The Motion Sensor Covers An Arc Of 110 Degrees Left And Right, Motion Sensor Distance Is Up To 19.68 Feet (8M), Working Area Is Up To 400 Square Feet.-- Once The Animal Stays Close To The Front Of The Device, The Pir Sensor Begins To Work * Improved Ultrasonic Version - Irregular And Variable Frequency Makes It More Effective In Driving Away The Most Aggressive Animals Thanks With Passive Infrared (Pir) Motion Detection Technology.* Auto-Adjust Frequency Range - 25Khz-61Khz, The (Pir) Detects Motion And Triggers The Ultrasonic Speaker Emitting A Tone That Chases Away Noise.Outdoor Animals Like Mice, Rats, Skunks, Dogs, Cats, Foxes, Birds, Bats And More.* Waterproof: Ipx4, It Can Be Installed In Your House, Garden, Yard Or Elsewhere.Weatherproof With Waterproof Waterproof Cover.