- See who's at your front door in clear 2K FHD with this Eufy C31 doorbell - the 4:3 view lets you see plenty of detail- Chat to your visitor in real-time with two-way audio or send a quick response if you're busy- The quick-release battery makes it easy to recharge - or you can hardwire for 24/7 recording- This doorbell is compatible with eufy's HomeBase 3 and Minibase Chime for extra functionality- It works with voice assistants, so you can just ask Alexa or Google Assistant to show you who's at the front door- You can store footage on the included microSD card or back-up to the cloud (subscription required)