A cutting-edge metal video doorbell, winner of Reddot & IF design awards Wire-free installation without cables or AC power needed 3MP/2K ULTRA HD with 145° wide angle lens Enhanced night vision up to 10 meters AI-powered PIR motion detection Clear two-way audio IP65 weatherproof, good for all seasons Compatible with Amazon Alexa & the Google Assistant Rechargeable battery with 3-6 months standby time based on 5-10 wake-ups per day Support SD cards up to 128 GB and Arenti cloud storage service Free cloud storage trail for rolling 3-day video history based on AWS Amazon cloud and bank-level encryption technology