Enhance your entryway with a Philips Plug-in 8-Melody Doorbell Kit. The plug-in doorbell pairs with up to four wireless push buttons and features eight melodies to customize each entry with its own sound. For additional personalization, adjust the sound level using four volume settings. This kit includes a bonus push button to quickly make a second door to your home ready for visitors. Each 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 doorbell and buttons to integrate into any décor.