A wireless doorbell is a modern device that allows homeowners to announce visitors without the need for traditional wiring. It typically consists of a button that the visitor presses and a receiver that emits a sound or chime inside the home. This setup makes installation simple, as it can be placed anywhere without the hassle of electrical work. Most wireless doorbells operate on batteries, making them portable and easy to relocate. They often come with various chime sounds and adjustable volume levels, allowing users to customize their experience. Some models even include features like video cameras or smart home integration for added security and convenience.