With PIR function (motion sensor), the effect is remarkable. It senses any movement and activates the system to emit ultrasonic frequencies that repel birds, cats, dogs and more. Adjustable frequency allows you to choose the animals you want to drive away. The solar outdoor insect repellent is weatherproof and suitable for outdoor use. Type: Bird Repeller Material: Plastic Power cord: DC 4.5V 200mA (not included) Solar panel: 6V 50mA Working current: Standby current: Working time: 9-11 seconds Ultrasonic frequency: 15KHz-25KHz (adjustable) Effective range : 500 Square Feet Features: Bird Repeller, Practical, Efficient, Rechargeable Battery Dimensions: 13cm x 16cm x 9cmPackaging contents: 1*green How to use:1. Install the device with screws in a sunny area. For better performance, it is recommended to place the device at least 3 feet off the ground, making sure the speaker faces the area you want to cover. 2. Turn the frequency dial to the animal you want to repel. Different frequencies will repel different animals. Some frequencies will repel multiple animals. 3. Press the ON/OFF button once to turn on the device. When pressed, the LED will light up red and activate the system if any intruder movement is sensed.Charging the battery: If there is no sunshine or it rains continuously for a long time and the battery capacity becomes very low, it is recommended to use the power cord (not included) to charge the device. There is a DC jack on the back of the switch. Pull out the jack cover and insert the power cord plug into the DC jack.Things to note:1. Do not immerse in corrosive liquids, as this may damage the product.2. Please do not scratch the surface of the solar panel with sharp objects.3. Please place the solar panel facing up in direct sunlight to ensure the best photoelectric conversion effect.4. Non-professionals are not allowed to open the shell to avoid danger.