Solar-powered cat and dog repellent instructions:

 Strong ultrasonic signals frighten animals. In the area where the unpleasant ultrasonic sound is present, the animals are frightened. When the animals enter the sound range, the sound is activated. Therefore, the animals cannot get used to the sound and the repulsion effect is stronger.
Technical Data

Power source: solar panels and 4×AA batteries.
Effective range: up to 8M (depending on weather and environment)
Detection angle: 110° horizontal (depending on the weather around)
Waterproof rating: IPX4.
Certificate: CE&ROHS

 It uses infrared detection principles to detect small animals and emit ultrasonic waves to drive them away. It can help you avoid the harassment of unwanted stray dogs, stray cats, and other small animals, thus protecting your property, your garden, and your courtyard.

Due to its portable design, this product can be installed anywhere in your home, garden, or yard. It is only used to drive away animals and does not contain any chemicals. It simply emits ultrasonic frequencies of 25kHz to drive them away. There will be no harm to human health.
1) Speaker: This product can emit high-frequency sound to drive away animals.
2) PIR (Passive Infrared) Motion Sensor: This is an infrared motion sensor that continuously outputs a signal. When it senses the presence of moving animals within its detection range, it automatically emits a sound wave frequency to drive the animals away, and the LED indicator light will also turn on.
3) LED indicator: When an animal is detected, the LED indicator lights up.