Real-Time Two-Way Audio & Video - Talk to visitors remotely via your phone with clear 双向 audio and live video feed, never miss a guest even when away from home.800mAh Long-Lasting Battery - Low-power design delivers up to 3 months of use on a full charge, eliminating frequent charging hassles.Clear Night Vision - See visitors day or night with infrared night vision, ensuring 24/7 home security monitoring at your doorstep.Smart Phone App Alerts - Receive instant notifications on your phone when someone rings the bell, check who’s at the door with a tap on your device.Easy Setup & Chime Included - Simple wireless installation, paired with a dedicated indoor chime for loud, reliable doorbell alerts throughout your home. | Cluzine | | Wireless Smart Video Doorbell with 2-Way Audio, Night Vision & Long Battery Life for Home Security | Best Buy