UniquExceptional UMA80 Motion Activated Alarm with Auto Dialer for Standard Phone Lines (White) Dials 1 to 3 numbers.You can program it to call your neighbor, your cell phone etc. Alarm can be disabled if you prefer a silent alarm.Requires 4 "AAA" batteries (not included) Unit comes with a line splitter (an additional line is not required) and 6 feet of phone cable Detects movement up to 20 feet away,LOUD 125db alarm Auto reset alarm to avoid false alarm,30 second exit delay and 10 second entry delay