Amazon-owned Blink has two new video doorbells , the Blink Wired Doorbell 2K+ and the Blink Battery Doorbell 2K+ . The wired doorbell is listed at $49.99 on Amazon, but a blog post from the company says it starts at $39.99 . The Battery option is $69.99 if you already have a sync module, or $79.99 bundled with the required hub . The doorbell cameras join Blink’s 2K camera lineup announced last fall, and also work with Blink’s smart video descriptions , which send alerts with text summaries of events the camera captures, such as “person playing basketball in the driveway.” They’re available for preorder now and will ship on May 20th. The wired version is Blink’s first wired-only buzzer and its first not to require a Blink Sync Module (although it can work with one). Previous Blink doorbells relied on the small hub, and could be wired or run on lithium AA batteries — as the new 2K battery doorbell does.…