More DetailsTalk directly to a 911 operator at the push of a button with no monthly charge to a third party monitoring company. 24 hours a day, 7 days a week. Pendant is a tiny, cordless speakerphone that can be worn around the neck, on a belt, or kept in your pocket. To avoid accidental activation, the button is recessed and must be depressed for a minimum of ½ second to call 911. Other units may only send an alert but with the Guardian system you have a 2 way conversation to explain your emergency. With a 600 foot range this device can be used inside or outside of most homes. Requires just one AAA battery (included) Pendant measure 4” x 1 5/8” x 5/8” and weighs a mere 6 ounces. 1 year limited warranty.