2K QHD -Now with 1.7 times more pixels than 1080p, providing clearer videos and photos. 180-Day Battery Life* -The rechargeable and removable battery with a low-power protocol extends your usage. Full-Color Night Vision -Reveal high-fidelity details and color at night with the starlight sensor. Smart AI Detection and Notification -Smart AI identifies people, pets, and cars, notifying users as needed. Wire-Free Placement -No wires means you can place the cameras almost anywhere inside or outside-whatever works for you Light and Sound Alarm -Triggers sound and light as an alarm when motion is detected. Two-Way Audio -Enables communication through a built-in microphone and speaker. Flexible Storage Choices -Save recorded videos on the hub-installed microSD card † (up to 256 GB) or by using Tapo Care cloud storage services. Water & Dust Resistant -Offers excellent waterproof and dustproof performance for outdoor scenarios.