No Wifi Needed: Insert an 4G LTE SIM card, and you can install the camera anywhere you want. 2K Super HD: 4MP vivid image quality gives you a clear image of what’s happening in the guarded area. 33FT Night Vision: Its infrared LEDs provide superior image quality for your nighttime recordings, supporting up to 10 meters (33ft) night vision. Multiple Storage Options: Supports up to 128GB micro SD card. Videos can also be saved to 7-day free Reolink cloud. Smart Person/Vehicle Detection: This bullet surveillance camera identifies true threats in the light of cutting-edge detection algorithm to reduce false alerts. You can easily filter the videos by distinct detection modes to replay what you want. Two-Way Audio: By using the built-in microphone and speaker, you can communicate with people on the other side and deter potential criminals.