IQ America Off-White Plug-In Wireless Door Chime Wireless, plug-in door chime. Easy to install and features zone-specific chime for 2 entryways. Includes off-white chime box that plugs into any standard outlet and 1 matching wireless push-button powered by 1 CR2032 lithium coin cell battery, included. A second wireless push-button can be added to the system, sold separately. Adjustable volume with melody choices including 8-note Westminster chime, traditional 2-note chime, and 1-note chime. Self-programming avoids interference with neighboring systems. 2.75 inches wide x 4.75 inches high x 1.5 inches deep. Weighs 0.5 pounds. 5 year warranty. Style Plug-In, Range 150 Ft., Batteries Required 1 CR 2032 Lithium, Color Off-White, Pkg Qty 1, Package Type Clamshell