The Defiant Wired Deluxe Contractor Doorbell Kit includes 2 wired push buttons and a door chime. This hardwired doorbell system is designed for easy installation and features the brand's model number 1008 504 844. The wired connectivity ensures reliable communication between the push buttons and the door chime, providing a clear and consistent signal for your home or business. Ideal for those looking to upgrade their existing doorbell system with a high-quality and durable option.