The Carlon RC3270 Wireless Plug In Flashing Door Chime allows you to install a new chime in minutes! Plug-in chimes make it easy to replace your old chime or install a new one. The receiver/chime plugs into a wall socket and plays six selectable sounds. Using the push button module, or by connecting the Push button module to a standard phone outlet, it will transmit a wireless signal to the receiver/chime module when the button is pressed or when the phone rings. Additionally, the receiver/chime module has a built in light that can be set to flash when the push button is pressed or if the phone rings. Operating range up to 150 feet, the door chime features 32 changeable codes to block interference from outside signals. Five year warranty.