IQ America Wireless Door Chime Extender Kit Plug-in remote door chime extender kit allows a doorbell to be heard throughout the house. Includes an acoustic pick-up extender and a doorbell receiver. The chime extender requires 3 AAA alkaline batteries, not included. The doorbell receiver plugs into any 120 volt outlet. Place the extender on an existing door chime and it sends a wireless signal to the doorbell receiver anytime the chime sounds. Ideal for basements, home offices, second stories, workshops, and more. Chime melodies include Westminster 8-note, 2-note, and 1-note. Features self-programming to ensure no interaction from neighboring systems. 2.75 inches wide x 4.75 inches high x 2.25 inches deep. Weighs 0.56 pounds. 2 year warranty. Style Plug-In Battery Operated, Range 150 Ft., Batteries Required 3 AAA, Color Off-White, Pkg Qty 1, Package Type Clamshell