The Ring Chime Pro Wi-Fi Extender and Indoor Chime is a white, wireless doorbell system suitable for home use. With features like waterproofing, a portable bell/chime, and the ability to play a melody/tune, this device from Ring is ideal for improving your home's entryway experience. Made of plastic and powered by Wi-Fi, the Chime Pro model offers convenient connectivity and installation for a modern and functional doorbell system.