Theory: 

*LONG RANGE CONNECTION

Working Range up to 98 feet (40 meters) between Animal Repellent (Receiver) and Transmittor (PiR Sensor), allows you to place it a good distance from the receiver to repel unwanted wild animals or birds away from your protected area;

*Easy, Fast, Wire Free installion

Infrared sensor detects motion and sends a signal to the Animal Repellent (Receiver).

and there are 2 modes to choose anddifferent frequency to repel animals. Sensors are wall mountable.

Specification:

1. Multiple Possibilities: N Animal Repellent +N Sensors for your extra needs

2.Power supply: Solar power+1x3.7V 18650 Lithium-lon battery

3. Material: ABS plastic

4. Ultrasonic Frequency: Mode l: 9K-25KHZ; Molde ll: 25K-45KHZ

5.Solar Panel: Polycrystalline silicon 50*50mm 5V 60mA

6.Sensor Range: 6-8meter @ 110°

7. The operating range between the animal repeller and sensors:230 meters at open area