The Tatco Wireless Chime with Receiver TCO57930 is a motion-activated device that signals when activity is detected. The remote receiver operates up to 200 feet away, providing flexibility in placement. With a detection range of up to 20 feet and an adjustable angle of up to 100 degrees, you can customize the sound direction. It features 32 different ring options, ensuring a wide variety of sounds to choose from. This product is FCC Certified for safety and reliability.