<p>The center of every Blink Video Home Security system, the Blink Sync Module enables up-to 10 wire-free Blink Security Cameras. Blink customers with existing systems will add a second module to create different zones for indoor and outdoor cameras or control Blink systems in multiple locations.</p> <p><strong>What is Blink Video Home Security?</strong></p> <p>Blink is the completely wireless home security camera that sends motion-activated alerts & HD video to your smartphone. No contract, no wires and batteries that last 2 years!</p> <p><strong>NOTE: The Blink Sync Module is for existing systems and requires Blink security cameras.</strong></p>