• The PIR detects motion and triggers the ultrasonic speaker emitting a tone that people cannot hear but chases away common outdoor pests like mice, rats, skunks, dogs, cats, foxes, deer, raccoons, squirrels, martens, birds, bats and more.

Specification:

• PIR sensor angle:110 degrees
• ultrasonic wave
• Material: ABS plastic
• Power: 3 x AA rechargeable batteries 
• Ultrasonic Frequency:12-36KHZ
• Coverage Area:8 meters@ 110°=70 square meter