With a resolution of 2K and 2304x1296, the image quality is detailed. Doorbell with IP camera without a wire and rechargeable battery Encouragement Wireless Chime and mobile alert | A video call to the ringing phone Encouragement Two-way audio | Motion Detection and Alerts | Built-in sensors track human movement and can identify and send real-time alerts | Users can chat using the built-in microphone IR night vision capability | Automatic detection and switching, effective distance up to 5m, continuous video recording and screenshots | Up to 128GB micro SD card support, uninterrupted H.264 video recording