Crystal Clear 2K Resolution: stunningly clear and detailed video footage in 2K resolution. With this enhanced image quality of 3 million pixels, up to 2304 x 1296 resolution, you can easily identify faces, objects, and important details, ensuring maximum security and peace of mind. Smart AI Motion Detection: YI cloud storage comes with the latest in Smart AI capabilities which can distinguish Person, Vehicle, or Animal accurately and reduce false alarms significantly (Subscription Needed) Enhanced Night Vision: Equips with 940-nm infrared lights, a high-sensitivity image sensor and F1.4 large aperture lens, YI 2K home camera captures detailed images even in low-light conditions. Secure Cloud Storage and Local SD Card: Store your data and recordings locally with an extra microSD card (up to 128GB, not included) or in the cloud. YI Cloud offers loop-recording with no storage limit, so even if your camera is stolen or damaged, your footage will still be secure and accessible on the cloud.The SD Card must be formatted to FAT32 as the camera does not support exFAT. Works with Alexa and Google Assistant: Use your voice command to turn on YI camera for home security or view your camera live stream on Echo Show or any screen-based Alexa device or Google Chrome Cast.