?How does it work? The repeller scares away unwanted animals and pests with the Passive Infrared (PIR) sensor, detects movement and triggers the ultrasonic speaker to emit a mix of ultrasonic, sound and powerful flashing LED flashes. The irregular and variable frequency more effectively wards off more aggressive animals that may adapt and become immune to a certain frequency band. ?Long Range? The PIR infrared motion sensor has an angle of up to 120 degrees and a detection range of up to 10 meters. This activates the cat repellent to emit a high frequency sound which is irritating to the cat and almost inaudible to humans. ?Use safety and human design? The cat deterrent animal repellent should lead the animal only without chemicals. only 13.5 kHz to 40 kHz ultrasound is emitted to chase them away. Does not harm the human body. And won’t hurt your own cats, dogs or other animals. ?Dual USB and solar charging? The ultrasonic animal repeller scares away cats with 4 built-in AA batteries,
