1. Loud ultrasonic signal scares animals. In the area of unpleasant ultrasounds of the animal, frighten the animal. The sound is activated when the animal enters the range. Therecompatiblee, the sounds that animals cannot get used to and the compatibleces of repulsion are stronger. It uses the principle of infrared detection and emits ultrasound to repel small animals while detecting them. It can protect your property, garden and yard by helping you stay away from harassment from small animals such as stray dogs and stray cats. As it is a portable design product that can be installed anywhere in your house, garden or yard, this product can be used with low voltage power supply and battery, this product simply repels animals without any chemicals, it simply emits a 25 kHz ultrasound to expel them away. 1) Loudspeaker: This product can emit high frequency to hunt animals. 2) PIR Motion Detector: This is an infrared sensor that emits a signal non-stop, when a moving animal is detected within the detection range, it will automatically emit a sound frequency to repel the animal and the LED indicator also lights up. Solar panel: 5.5v 0.11w, amorphous silicon Battery: 4x 2/3aa 300mA ni - MH Frequency: 25khz - 60khz Range: within 110 sector area directly ahead, 6 - 8m Material: ABS Product size: length 38*width 14.5*9.5cm