【Multi-functional Monitor】The 4.3-inch LCD display not only displays video of the front door, but also displays the date, time and weather of the day 【Connect From Anywhere in Your Home】Whether you’re in the living room, kitchen, or upstairs study, you can have real-time video conversations with visitors at your door. 【One Tap to Let Visitors In】Even when you’re busy in the kitchen, you can easily unlock the door using the Add-on Monitor. 【Easily Talk to Visitors at Your Door】Perfect for multi-story homes, the extension monitor lets you talk to visitors instantly from your living room, kitchen, bedroom, or upstairs office. 【Easy Setup, Ready To Use】Step 1 Pair with the SwitchBot App. Step 2 Place Add-on Monitor in an area with strong WiFi., Manufacturer: Wonderlabs