The eufy Video Doorbell C31 offers 2K Full HD video, flexible power options with either battery or hardwire, easy installation with a quick-release battery, live video calls, human and motion detection, compatible with HomeBase S380, no monthly fees. Crystal-Clear Welcome in 2K FHD Experience 2K FHD clarity for clear and detailed visuals of your visitors. Even at night, the crisp images ensure you never miss a detail. The 4:3 view offers a comprehensive picture of your entire front door area, enhancing your security and awareness. Real-Time Chat, Seamless Experience Stay connected with your visitors instantly. When someone rings the doorbell, a pop-up video call appears on your phone, providing a live preview. If you're not home, you can set up quick responses and ask visitors to leave voice messages, ensuring you stay informed. Powered With Dual Power Options Enjoy versatile installation options with dual power choices. The quick-release rechargeable 6500mAh battery allows for easy setup and mobility, while the hardwire power option supports continuous 24/7 recording and 5-second pre-roll for motion-activated events, offering enhanced security and peace of mind. Get 24/7 Protection with Hardwire Power For uninterrupted security, hardwire the doorbell to your existing doorbell wiring. This ensures you never have to worry about power outages and enables continuous 24/7 recording and 5-second pre-roll for motion-activated events, providing constant protection. Compatible with HomeBase 3 (S380) & Works with Alexa & Google Assistant Seamlessly integrate your doorbell with various devices. Pair it with the eufy HomeBase 3 (S380), eufy Minibase Chime (T8023), and enjoy compatibility with Alexa and Google Voice Assistant devices, making your smart home experience more connected and convenient.