Check the listing for details. Blink Video Doorbell + Sync Module Smart Video Doorbell Alexa Compatible. Color: Black, Condition: New. Listed at 40.00 USD. This Blink Video Doorbell + Sync Module Smart Video Doorbell is the perfect addition to any home. With wireless connectivity, this black video doorbell comes equipped with night vision and motion-activated features, ensuring that you can keep an eye on your property at all times. The round button shape and compatibility with Amazon Alexa make it easy to use and integrate into your smart home system. This smart video doorbell is suitable for home use and comes with a sync module for easy installation. The Blink Video Doorbell is designed with the latest technology and is perfect for those who want to stay connected and protected. With its sleek design and advanced features, this smart video doorbell is a must-have for any homeowner.