Enhance your entryway with a Philips Plug-in 2-Melody Doorbell Kit. The plug-in doorbell pairs with up to four wireless push buttons and features two melodies to customize multiple doors with separate sounds. For additional personalization, adjust the sound level using four volume settings. The push button includes a CR2032 battery, while the doorbell plugs into any outlet in your home. The wireless setup, provided mounting hardware and up to a 150ft. range make installing the system quick and easy. The white finish allows the chime and button to integrate into any décor.