For example, the Doorbell does not need you to own a Sync Module, but if you have more than one Blink camera, we suggest you add the Sync Module. Blink How to set up a Blink Video Doorbell ...

The Blink Sync Module XR lets you place the Blink Outdoor 4 up to 400 feet away from your home, giving your security system additional flexibility.

The Blink Sync Module XR is now available for purchase. The device increases the wireless range for the Outdoor 4 security camera by up to 400 feet.

Get the One With the Sync Module As mentioned, the Blink Video Doorbell + Sync Module 2 bundle includes the doorbell camera and a module that connects the doorbell to Blink’s cloud servers.

Blink is an established brand for affordable indoor and outdoor home security cameras, but its Video Doorbell + Sync Module 2 ($69.99) is its first entry in the burgeoning smart doorbell arena.

The upcoming Blink Video Doorbell will cost just $99 -- if you already have a Blink Sync Module.