Place of use: It can be installed in your home, garden, or courtyard This product only repels animals without chemicals, it only sends out ultrasound to drive them away 1) Speaker: This product can emit high frequency to drive away animals. 2) PIR infrared detector: This is an infrared transmission sensor that continuously outputs signals. When it senses that a moving animal is in the detection range, it will automatically emit a sound wave frequency to drive the animal away and the LED indicator will follow Light up. How to use: 1. Take out the product from the box 2. Use a Phillips screwdriver to open the battery cover on the back of the product and install three 1.5V/AA batteries according to the correct positive and negative direction of the battery, and put the battery cover back to the original place, tighten the screws to prevent rainwater from entering , Affect product quality. 3. The product can be fixed and hung where you need it with the equipped screws, or it can be inserted into the soil for use.