Monitor who comes to the door"even when you're not home"with a doorbell that streams video right to your smartphone! Motion-activated sensor triggers the recording function anytime it senses movement and the wide-angle lens gives you 140 viewing. 1080p recording with night vision. 2-way audio. Compatible with Amazon Alexa and Google Home. Supports up to a 128 GB microSD card (not included). Includes doorbell/camera (2 1/2" w x 5" h x 1" d), wedge mount and flat mount, face plate, tool kit, chime and USB cable. Must be hardwired in.