The Vivint Gen 1 Camera Set with Doorbell Camera is a comprehensive home surveillance system that includes two cameras with a doorbell camera for added security. These cameras feature LED LCD display technology, a 1ms response time, and are compatible with Amazon Alexa for smart home integration. The set operates on a 30W power supply, and offers a 9m operating range. With a maximum resolution of 1080p and a contrast ratio of 50:1, this system provides clear and detailed footage for both outdoor and indoor locations. The sleek white design and color mode of color during the day and black and white at night make it a stylish and effective choice for home security. You need separate NVR for ling term recording.