The Blink doorbell does what Blink always does: They provide a just good enough experience for a rock bottom price. For just $50 you can add the Blink doorbell into your existing sync module 2 and record locally onto a USB drive with no subscription fees. The Blink doorbell had by far the best battery life, and did a great job recording entire events. The actual video recorded by the Blink isn’t high quality, but it’s passible, and the same can be said for the rest of the features in the Blink app, which aren’t fancy but get the job done.