3-In-1 Unlock Ways: The most ideal keyless entry door lock, unlocking ways including Bluetooth APP, Fingerprint(110pcs) unlock less 0.25s, Key and WIFI control remotely (Gateway sold separately). Better ideal lock for interior door lock. USB Interface unlock when out of battery Smart Performance: Share E-Key with your friend or courier when you are not home if necessary; Support view all visit records in the App, use with Gateway (sold separately) you can unlock the door remotely and get real time notices of unlocking records from phone. Auto lock, keep your home safer Easier but Safer: The biometric door lock made of highly quality of stainless steel, stronger and more durable. LED indicator sleek and modern; low battery indicator, more convenient Easy Installation: Easy install within 5 minutes with just 2 screws, no need to re-punch, easier to replace existing old knobs. Suitable for all doors thickness about 1-3/8'' to 2-1/8'' (35 to 55mm) . Adjustable backset from 2-3/8''(60mm) or 2-3/4''(70mm). Provide detailed installation instructions and videos Customer Service: Geek Smart Team provides customer service for our smart door lock. Any problems with install or technical when using, please feel free to contact us › See more product details