eufy Security Video Doorbell Add-On Chime, Indoor Chime, Requires Video Doorbell E340/C31/C30, No-Delay Ring, Adjustable Volume, 8 Fun Ringtones, Not compatible with HomeBase S280

Never Miss a Visitor: Hear the chime throughout your home. Receive real-time notifications when someone rings the doorbell.
Custom Tones: Select from 8 chime options and set the ideal volume for your home.
Store Doorbell Footage with a microSD card: Add up to 128 GB for storing footage from your doorbell camera by adding a microSD card (not included). Video is protected even if your video doorbell is damaged or lost.
Easy to Set Up: Simply plug in, connect to your 2.4 GHz Wi-Fi network, then with just a few taps in the app you're up and running in no time.
Official Accessory: Works with Video Doorbell E340/C30/C31 and all upcoming eufy video doorbells. However, it does not support other eufy security doorbells at this time.
Currently, the T8023 Minibase Chime can only be used as an indoor "ding-dong" chime via the App >> Doorbell Setting >> Indoor Chime >> Minibase Chime. The SD card can only be placed inside the doorbell to store videos.