The Honeywell RCWL100A1008/N Portable Wireless Push Button Door Chime features an option of (3) different chimes. Reaching a 75-foot range, this wireless door chime and push button has a traditional sound quality and (16) available codes to avoid interfering with other users. Mount the battery powered chime to a wall or use it as a portable device to hear visitors while outside or in the garage. This wireless chime measures 10.125-inches (H) by 6.78-inches (W) by 1.78-inches (D) and has a white finish. This chime and push button is compatible with chimes in Honeywell"s "A" category. Honeywell"s easy-to-follow categorization is a guide to find properly compatible chimes and push buttons. Wireless chimes eliminate messy wires during installation, and the process is extremely simple. The Honeywell RCWL100A1008/N Portable Wireless Push Button Door Chime comes with a 1-year limited warranty that protects against defects in materials and workmanship.