I understand ezviz will eventually add the wireless chime similar to Ring. My only experience is with Wyze products, combining their own products within their wyze ecosystem (sensors, plugs, etc.). Wyze allows for triggering other devices (wyze) using "rules". Since ezviz have a similar ecosystem (cameras, sensors and smart home devices), check if a similar triggering actions (rules) are available (i.e. "when door bell is pressed, turn on wall plug for 3 seconds"). If yes, you may combine an AC smart wall plug to a chime, connected to the plug output. iftt may also work, but I always prefer to stay within the same brand, in this case ezviz.