Detect intruders with our motion detector phone dialing alarm that automatically dials up to 3 stored phone numbers. You will be alerted by a your own recorded message when a situation arises. Detects motion in an area up to 32 feet vertically and 43 feet horizontally. Unit is easily installed by plugging into an existing phone line. Great for spying or protecting certain areas. Powered by 4 AAA batteries (not included).