
See who's at your front door with this Zmodo Greet Pro smart doorbell. Its built-in Full HD camera with a 180-degree wide-view angle provides high-quality recording of a large outside area. Talk to visitors remotely or leave a voice message via the companion app of this Zmodo Greet Pro smart doorbell. 
Q: Does this require a existing doorbell?
A: Hi Emily. yes, it needs an existing mechanical doorbell chime, or you can install a 20 ohm resistor if you don't want to install a doorbell chime.
Q: Does this require a fee like Ring
A: Hi Drago, it doesn't require fees for live viewing and monitoring. You can also view the motion video clips for the past 36 hours. If you would like to playback recording footage for even more days, you can subscribe for the cloud service and that requires fees. For more info regarding cloud service, you can visit this site: https://www.zmodo.com/zmodo-cloud
Q: Can you use more then 1 unit at a time like front and rear of house together. Thanks
A: Thunder, There is not limit to the number of devices you can connect to the app. Just make sure that to properly name the device so you can determine the difference between them.
A: Rockman23, The Zmodo Greet Pro Doorbell is 4.4x1.9x0.9 and weighs .27 lbs. For more spec information please visit https://www.zmodo.com/greetpro-1080p-wifi-video-doorbell/.
Q: Does this work with Alexa products?
A: JI, Yes, The Zmodo Greet Pro Smart Wifi Video Doorbell works with Amazon Alexa.
Q: What can you do if you DONOT have an exiting doorbell at all. Or no power source for the doorbell.
A: Hi, This exquisitely designed home security video doorbell is compatible with your existing hard wired chime. With all necessary tools in the package, installation is a breeze. (Currently the Greet Pro is not compatible with digital chime.)
A: Yes, it comes with chime box
Q: What are the dimensions of this doorbell?
A: The dimensions are .87"W x 4.37"H x 2"D.