This video doorbell from Aiphone is a great addition to any home security system. With a flush screen size and AHD surveillance technology, you can keep an eye on your property from anywhere. The IS-DVF model is designed for easy installation and comes with a central control unit for power source. It operates at 24 V voltage and is ideal for use in door entry systems and intercoms. The silver finish adds a touch of elegance to your home décor.