Answer your door anytime, anywhere from your smartphone with 1080p HD day and infrared night video and two-way audio. Experience up to two years of powerful battery life, custom alerts, privacy settings, and more. Designed for every home, go wire-free or connect to existing doorbell wiring to also sound in-home chime. Set up yourself in minutes with the two included AA lithium batteries then connect to wifi in the app. Works with Alexa — access live view, two-way talk, receive motion and chime alerts, arm and disarm your doorbell, and more. Doorbell Features Two-way audio, HD video, motion and chime app alerts Experience up to two years of powerful battery life, custom alerts, privacy settings, and more Compatible With iOS, Android, Fire OS Create custom activity and privacy zones to see only the movements where you care most 135 degrees HFOV x 80 degrees VFOV Alexa enabled, and easy install — wired or wire-free