product description The garden animal repellent is the original ultrasonic insect repellent and North American equipment, which is beautiful. The adjustable ultrasonic dial targets most pests, including raccoons, deer, skunks, mice, squirrels and more. It comes with an optional predator alert, even big carnivores like bears can scare away. Features of Ultrasonic Insect Repellent Device: 1. The original paddock sentry is driven by ultrasound. 2. Adjustable ultrasonic frequency to target troublesome pests. 3.10-15M infrared sensor distance. 4. Optional predator alarm sound and eagle call, you can turn off the sound that people hear, but it does not affect the operation of the ultrasound. 5. Usable indoor and outdoor, weather resistance. 6. Use battery or AC adapter for operation (battery not included). 7. Intelligent power system, easy to install. 1. Three modes: Induction mode: infrared induction heat objects (adjustable straight line 1-20M) to emit ultrasonic waves (fixed frequency) Continuous mode: without infrared induction, continuous ultrasound Scanning mode: ultrasonic induction mode from low frequency to high frequency 2. 24-hour mode: 24-hour working mode Day working mode Night work mode 3. 4 kinds of alarm sounds: One. Two is the alarm sound, and three. Four is the eagle call. (Can be closed) 4. Ultrasonic frequency: 16KHZ-25KHZ (adjustable) Effective range: 5000 square feet (about 400 square meters)