Dual Cameras, Double Security: Two cameras work together to deliver advanced viewing. The front-facing camera focuses on people, while the downward-facing camera fills in the gaps with a view of the floor in front of your door. Color Night Vision for a Clear View : Introducing the industry's first dual-light system paired with an advanced light capturing and processing algorithm. Less blur than previous iterations of night vision and a clear nighttime viewing distance of up to 16ft (5m). See What Matters in 2K Full HD Clarity: 2K clarity reveals more details. Get clear and detailed visuals of your doorstep and anyone who drops by. Battery or Wired, Your Choice: Battery mode makes installation easy. Keep a spare quick-release battery for quick swaps and avoiding downtime due to charging. Wired mode is also powered by the battery, which is topped up by the wired power source for long-lasting performance. Note: Wired mode requires the battery to be installed and a power source power should be connected with 8 to 24V and >10VA. Pair with a Chime to Hear Alerts* Throughout Your Home: Can connect with your existing mechanical chime, or pair with eufy HomeBase™ S280, eufy HomeBase™ S380, eufy Minibase Chime (T8023), Alexa devices, and Google Voice Assistant devices. Note: Not compatible with the original eufy Wi-Fi Chime (T8020) or eufy Chime (T8740/T8742). Compatible with HomeBase™ S380 with firmware version V3.3.2.6 and above.