Weatherproof Design: IP66-rated waterproof and dustproof housing ensures reliable performance in any weather conditions. Advanced Motion Detection: Intelligent motion sensors detect movement up to 16 feet (5 meters) away and send instant alerts to your smartphone. Night Vision Capability: Built-in infrared LEDs provide clear night vision up to 16 feet (5 meters) for round-the-clock security monitoring. Two-Way Audio: Integrated microphone and speaker allow you to communicate with visitors from your mobile device. Easy Installation: Wireless setup and battery-powered operation enable quick and hassle-free installation without any wiring required. No Monthly Fee:Doorbell camera videos and accounts with encryption technology to save videos.(This product does not contain batteries and requires 2 x AAA batteries) Color: Black & White Material: ABS Package Contents: 1 * camera doorbell 1 * siren 1 * USB data cable 1 * English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.