Great for offices and home, you'll always know when someone is at the door! It can be screw mounted (screw not included) or be easily mounted using double-sided tape (not included) as it is very light weighted. 50ft range from the button to the chime. Chime measures 5" diameter with 1" depth, and the button unit is about 3" x 1 1/2" x 3/4".

-SKU (MODEL#): H-87002. -Manufacturer: Hawk. -Usage: Home and Office Use.. -Package Dimension: 9" X 5.75" X 1". -Battery: 1 x 23A12V (included), 2 x AA (not included)..