Motion Sensor Bird, Chirps when you pass by! Motion sensor bird keeps watch over all your comings and goings! Just perch this colorful, lifelike poly/resin figurine anywhere in your home. Its built-in sensor detects movement within 4-1/2 ft. and greets you with a cheery chirp whenever you walk by. Adds a delightful accent to any room. Measures 4" L x 4-1/4" H. Has on-off switch. Uses 2 AA batteries (not incl.). For indoor use only.