This video doorbell works on battery as well as wired. 16-24Vac.

• Crystal-clear welcome in 2K FHD: Experience 2K FHD clarity for detailed and vivid images, so you can see exactly who is at the door, even at night. The 16:9 extended view provides a wider view of your entire front door, for better security and peace of mind.

• Real-time chat, seamless experience: Stay in touch with your visitors in real-time. When someone rings the doorbell, you receive a pop-up video call on your phone, with a live preview. If you are not at home, you can set up quick replies and ask visitors to leave voice memos, so you never miss an important message.

• Power the way you want with dual power options: Enjoy versatile installation options with dual power choices. The quick-release 6500mAh rechargeable battery ensures easy installation and mobility, while the wired power option supports continuous 24/7 recording and 5-second pre-roll for motion-activated events, offering enhanced security and peace of mind.

• 24/7 protection with wired power: For uninterrupted protection, connect the doorbell to your existing wiring. This ensures that you never have to worry about power outages and can record 24/7 and anticipate 5-second events triggered by movement.

• Compatible with HomeBase 3, works with Alexa & Google Assistant: Integrate your doorbell seamlessly with a range of devices. Pair with eufy HomeBase S380, eufy Minibase Chime (T8023) and enjoy compatibility with Alexa and Google Voice Assistant devices for a fully connected smart home experience.