P3 International Bird Chaser and Small Animal Repeller Detection Distance 8 yards; Built in motion sensor; Uses two deterrant methods recording of predatory birds and an ultrasonic sound; Detection Angle 110 degree; Adjustable volume; Easy to install and adjust settings depending on your preference Bird Chaser Ideal for farms yards orchards gardens and public buildings where birds tend to flock Powered by 3 D batteries Repels crows pigeons blackbirds & sparrows