Video Doorbell - Two-way audio, HD video, long-lasting battery life, motion detection, chime app alerts, Works with Alexa (Black) Black Add-on Doorbell

• Answer your door, no matter where you are, from your smartphone with 1080p HD day and infrared night video, and two-way audio.
• Experience long-lasting battery life, customised alerts, privacy settings and more.
• Get alerts when motion is detected or someone presses Blink Video Doorbell. Connect to existing doorbell wiring or pair with a Sync Module (sold separately) to engage live view and two-way audio on demand.
• Choose to save and share clips in the cloud with a free 30-day trial of the Blink Subscription Plan or locally with the Sync Module 2 and USB drive (each sold separately).
• Designed for every home — Connect to your doorbell wiring to sound existing in-home chime. Alternatively, get alerts on your smartphone, or use Blink Mini 2 (sold separately) as an indoor plug-in chime, without wiring.
• Set it up yourself within minutes, with the two included AA lithium batteries, and then connect to Wi-Fi using the app. The newly designed internal battery seal provides IP54 weather resistance rating.
• Works with Alexa — Receive alerts and answer with two-way audio. When paired with a Sync Module (or wired with a compatible in-home chime), just ask Alexa to answer the front door.
• Includes: a Blink Video Doorbell and mounting kit (including screws and fixings). Does not include a Sync Module 2, which can be found in all “Systems” above (recommended for optimal use while on battery).