Our smartphones today are being unlocked by a variety of secure methods, ranging from the traditional pin code, to fingerprints, to voice. What if those same secure methods were available to secure our doors as well? Except for the fingerprint part, Schlage pretty much has you covered. Here at CES 2015, we take a quick hands-on of the company's new generation of smart locks that keeps your door and your phone connected, even when you're far away. It even has one that can be unlocked just using your voice.