TP-Link Tapo C420S4 Smart Wire-Free Security Camera System, 4-Camera System • 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 colour 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 512 GB) or by using Tapo Care‡ cloud storage services. • IP65 Water&Dust Resistant-Offers excellent waterproof and dustproof performance for outdoor scenarios. Warranty Period: 1-Year