Color:Grey Answer The Door From Anywhere,Seem Like You Are Always Home:With a sensitive motion-activated camera,brilliant HD video and two-way audio, you’ll never miss any visitor again.See, hear and speak to anyone at your door in real time from the app, whether you're at home or on the go.Rain or shine,day or night.❤Two-Way Talk And Real-Time video:Clarity intercom,so you can speak to anyone in front of your door.Get alerts to your smartphone, tablet or desktop, and monitor and interact with visitors in real time.❤HD video with Infrared detection system:High definition resolution with wide-angle lens.Don't worry about the definition,whether rain or shine,day or night.❤Instant Alerts With Sensitive PIR motion detection:Wake up automaticlly with PIR motion detecton,it will send notifications to APP instantly.Customize sensitivity and get real-time alerts when visitors are detected.❤Energy Saving and Durable: 18650 lithium battery, which can be uesed for 6month,can be recharged 500 times, which equivalent to 500 ordinary batteries.You can charge the battery directly through the USB charging port with the android charging cable.❤Not enough memory? It's impossible

You can install memory card, up to 32G.And the smartphone can also store the videos.There is a "TF" on the battery panel，just use the gift screwdriver to remove the battery panel

There is a card slot for the memory card

It can be used by plugging it in

❤What will you get in the box:1×Video Doorbell;2×Lithium Battery;1×User Manual;1×3M Glue;4×Screwdriver 4×screws.Size:3.0inch×1.1inch×5.6inchWeight:0.377kgAbout waterproofing: some water mist or raindrops on the top will not affect its work at all, fully meet the daily needs.