4-In-1 Unlocking System: Fingerprint, Password, App, Or Mechanical Key For Customized Access. Comprehensive App Control: Manage Users, Monitor Battery, And Adjust Settings Effortlessly. Enhanced Privacy: Keep Your Biometric Data Safe With Local Storage Only. Easy Installation: Quick And Straightforward Replacement Of Your Old Door Knob. Emergency Charging: Ensure Continuity With Backup Power Solutions. Craft the perfect entry experience with our smart entry architect, tailored for modern lifestyles. The robust stainless steel build stands the test of time, while the versatile unlocking methods cater to your every need. From the comfort of your home to the sophistication of your office, this smart door knob promises a harmonious blend of form and function.