This repeller is designed for permanent sevice allowing you install it once and let it work!It is weather-proof allowing it work all year-round and in virtually all weather conditions.It uses solar power to recharge the batteries so its always working.The Passive InfraRed sensor(PIR) detects motion and triggers the iltrasonic speaker emitting a tone chases away common outdoor pests like dogs.cats.deer.raccoons.mice. skunks,squirrels and more.This solar animal repeller is a safe and humane way to keep unwanted animals away!

• Power Source: Solar Powered, No Batteries or Electrical Outlet Needed, Easy to Install A solar panel on the top of the device can charge for the device, normally it can last 6-8 hours when fully charge
• Ultrasonic Pest Repeller: PIR (Passive Infra Red) motion activated Animal Repeller provides a human way to repel unwanted animals away. When the device detect animals,will release ultrasonic signals to repel animals away in a humanize wayleave.
• Coverage Area: PIR can detect motion within a 30ft(9.14m)radius(depends on weather), while motion sensor vovers 110 degree arc.
• Friendly Environment: The mole repellent can drive animals away from your garden without using chemicals, you can enjoy your wonderful life with using this electronic repellent.

Power Source: Solar Powered, No Batteries or Electrical Outlet Needed, Easy to Install A solar panel on the top of the device can charge for the device, normally it can last 6-8 hours when fully chargeJiang Yun