4K ULTRA HD & 5X OPTICAL ZOOM: Boasting an ultra-high clarity of 4K Ultra HD, which is 1.6X sharper than the 5MP cameras, this camera could also deliver stunning 8MP full-color night vision. The 5X optical zoom also allows you to zoom in for more details and zoom out for a broader view. | SMART DETECTION & AUTO TRACKING: Advanced person/vehicle detection based on leading-edge detection algorithms helps to identify true threats and filter playbacks accordingly. It also tracks the moving targets automatically and keeps an eye on suspicious activities for you. | TIME LAPSE & FLEXIBLE RECORDING OPTIONS: Start to shoot time-lapse videos to view the changes of a day in minutes or seconds. 24/7, scheduled, or motion-activated recordings can all be saved to a micro SD card (up to 256GB, not included), Reolink NVR or the FTP server. | MULTIPLE ALARM METHODS: Once the cam detects something abnormal, the built-in siren and spotlights can be triggered while two-way talk permits you to give a warning to suspicious people. Instant push notifications and email alerts allow you to deter the uninvited immediately. | DAILY PATROL WITH PRESET POINTS: With the 360° pan & 90° tilt capability, this 4K PTZ PoE camera can focus on minor details in hidden corners. Supporting 64 preset points in total, it could patrol up to 16 preset points at a time as the daily routine then back to its guard point.