Seicosy Ultrasonic Pest Repellent With Intruder Alarm & Dog Silencer Device With Bark Dectection, Remote Control &hellip; As a bark stopper: Mobile and free-standing, allow for maximum placement flexibility, can be placed inside(by a dog owner) OR outside(for neighbors' dog) to stop dog barking. Safe and effective for all size and breeds of dogs. As a pest repeller: Durable and Weatherproof, can be used in Home, Office, Hotel, Patio, Attic, Warehouse, Basement, Garage, Yacht, etc TO REPEL Mice, Squirrels, Deer, Chipmunks, Fox, Bat, Raccoon, Wolf, Skunk, Coyotes. etc Multifunctional: Ultrasinic Sweep + Infrared Motion Sensor + Intruder Alarm + Bark Detection + Remote Control + Adjustable Working Hours Details: bark stoppers are able to detect barking from as far away as 50 feet(15m). For most dogs, they are sensitive to frequency around 23kHz and the device emits fixed frequency of 22kHz to 25kHz. The ultrasonic frequence has a range of up to 70feet(21m), 170 degrees horizontal & 60 degrees vertical. Parameters: Color: Dark Green, Weight: 950g Apx. Power: 110V 3.6Watt (Powered by D/C Source or AA Batteries). Product size: 6.7 X 5.5 X 3.6 Inches, Package size: 9.9 X 7.5 X 4 Inches, comes with mounting holes and screws, and instruction manual.