2K Super Clear Video Image Quality: View every event in 2K super clear image quality so you see exactly what is happening inside your home. Upgraded 3 million pixels, up to 2304 x 1296 resolution, for clarity in every angle. Smart AI 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 F1.9 large aperture lens, YI 2K home camera captures detailed images even in low-light conditions. Local SD Card and Cloud Storage: Store your data and recordings locally with an extra SD card 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. Compatible With Alexa: 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.