4K Clarity, Day and Night: Capture every detail in stunning 4K HD, day and night. With our ultra-sensitive sensor and color night vision, you'll enjoy crystal clear, vibrant footage even at night. Cross-Camera Tracking with BionicMind™️: Experience swift and effortless event reviews with Cross-Camera Tracking. Unlock the true potential of your security facial recognition differentiates between family and strangers. Stable Plug-In Power for 24/7 Recording: Enjoy the convenience of plug-in power with our 16.4 ft (5 m) cable and enjoy uninterrupted 24/7 recording. No power worries, just seamless security at your fingertips. Stable Wi-Fi and Easy DIY Installation: Stable Wi-Fi coverage that reaches every corner of your home (up to 5,000 ft² / 464 m²), avoiding security blind spots caused by Wi-Fi dropouts or insufficient Wi-Fi coverage. Wireless connectivity works at distances up to 82 ft (25 m) between cameras and HomeBase 3, allowing easy DIY installation anywhere power is available. Save Months of 24/7 Security Footage: With EufyCam E330, your data is protected with advanced encryption, putting you in control. A 1 TB storage drive is included which allows saving 24/7 recordings from four EufyCam E330 for up to 10 days. Save up to 6 months of recordings by expanding the local storage up to 16 TB.