The Arlo Pro 4 series delivers superior video quality with 2K HDR combined with the convenience of connecting directly to Wi-Fi without a SmartHub, making it perfect for protecting medium to larger spaces. Stay connected to your home from anywhere with live video and audio, and receive instant alerts on your phone when motion is detected. Capture clearer details and colors in 2K HDR. Connect directly to Wi-Fi for easy setup without wires. Works with Apple HomeKit, Amazon Alexa, and Google Assistant. Always be aware and react faster with tools to take immediate action. Receive smarter alerts with Object Detection and reduce unwanted notifications with Activity Zones. Quickly respond with Intelligent Alerts and immediately dial emergency services, phone a friend, or sound the alarm from your phone. Look back at past events with Video History. The convenient magnetic mount allows for quick installation and easy adjustment wherever you'd like. Enjoy 6 months of battery life on one charge for flexible, wire-free installation, with optional fast charging via a magnetic cable. Hear and speak to visitors clearly with 2-way audio directly on your phone, and deter unwanted guests by triggering your siren automatically or manually from the Arlo app. The camera is weather-resistant for year-round security, certified to withstand heat, cold, rain, or sun. Works seamlessly with your smart home, allowing you to receive alerts and manage your home security using your favorite smart devices. Features include a 130° horizontal viewing angle, 160° field of view, 12x digital zoom, and 4MP total megapixels with a maximum resolution of 2560 x 1440 pixels. It supports H.264 and H.265 video compression formats and 720p, 1080p, and 2560x1440 video modes. It has a built-in microphone for full duplex audio. Connectivity is wireless via 802.11b, 802.11g, and Wi-Fi 4 (802.11n). It includes a DC-in jack and a USB port. Security features include a motion sensor, HTTPS encryption, and password protection. The camera operates on AC, battery, or DC power, with a standby time of 180 days. Operational temperature ranges from -20 to 45 °C. The camera weighs 316g and measures 78.4mm in height, 52mm in depth, and 89mm in width. This package includes 3 cameras.