-Smartphone App, Knock to Open, Fingerprint, Code and Key-1 Finger Touch Open in less than 0.5 second-Know who has opened your door and when-Up to 8,000 Times Access-Easy Setup and DIY Installation Feature All-in-one Flexibility-5-in-1 Keyless Entry via Smartphone App, Knock to open, 95 fingerprints, 95 codes and 3 backup mechanical keys Smartphone Control-Bluetooth 4.0 Low Energy Connectivity with Dual Data Encryption-View users-Log record-Clone Ultraloq Advanced Fingerprint Technology-Less than 0.5 second identification-Durable, waterproof and dustproof -Heal broken fingerprint lines-Works well for kids and the elder Numeric Touchscreen-User defined 4-8 digit codes-Antipeep password-Touch wakeup-Up to 95 codes Hidden Key-Positioned specially on the bottom, keyhole gives extra security in case of keyhole hackers Integrated Clutch Design-Innovation in clutch design. More reliable but 50% less power consumption than traditional clutches Long Battery Life-Up to 8,000 times access. Low battery alarm on OLED Go Remote Instantly with Optional WiFi Bridge  -Control entry access to your door from anywhere, for anyone with the optional Bridge. You can unlock your Ultraloq or grant access to guests and visitors via a code or eKey for specific dates or periods of time remotely with no monthly charges. You will receive a smartphone notification when someone opens your door. Works with Alexa, Google Home and IFTTT. Solid and Resistant-The solid one-piece Zinc Alloy body is completely waterproof and dustproof. Ideal for both interior and exterior door installation Intuitive OLED Display-Use touchscreen to simply add or delete user on the device. An OLED screen with intuitive information will walk you through the whole process Easy Setup and DIY Installation-No wiring. No drilling. Fit Door thickness between 1-3/8"~1-3/4" Reversible Handle-Suitable for both left-handed and right-handed doors  Three Locking Modes-Auto relock, privacy lockout and free passage