HighlightsTwo way audio and talking functionWith a field of vision of 155 degrees, it can capture more of what's going in front of the door.IP54 Waterproof and quick installmentCompatible with Alexa Google AssistantThe standby time is up to 90 days long after being fully charged.Details*Features* - *Two-Way Audio & Motion Detection* - The built-in microphone and speaker system provides two-way high-fidelity conversation all the time. As long as your phone is connected to network,you can have a r