1.7 MP Viewing angle: 140° Wi-Fi Power source type: Battery, USB AA Built-in microphone Built-in speaker(s) Compatible memory cards: MicroSD (TransFlash) Maximum memory card size: 256 GB Introducing Swann EVO Wireless Video Doorbell with portable indoor chimeits your ultimate front door companion. The HD camera with a wide 140° viewing angle captures HD color video in ambient light with powerful night vision in B&W. With the EVO Video Doorbell you get reliable alerts, 2-way audio & flexibility to add a MicroSD Card to save recorded clips for free. Power up the doorbell using built-in 5200mAh rechargeable battery or hardwire it. Use the free SwannShield AI Voice Assistant for added protection to talk with visitors when you can't or are away from home. Its security you can trust.Get the Full PictureExpanded head-to-toe view with a 140° viewing angle lets you see faces at the door & packages on the ground. Talks with Visitors For YouThe SwannShieldAI Voice Assistant can talk with v