P3 International P7831 Bird Chaser with built-in PIR Sensor

Bird Chaser Repels crows, pigeons, blackbirds, & sparrows Uses two deterrant methods: recording of predatory birds and an ultrasonic sound Built-in motion sensor Adjustable volume Easy to install and adjust settings depending on your preference Ideal for farms, yards, orchards, gardens and public buildings where birds tend to flock Powered by 3 D batteries Detection Distance: 8 yards Detection Angle: 110 degree