Smart locks eliminate the need to search for keys or wait. The moment you approach, they recognize you naturally, unlocking gently to welcome you into your personal space. With their inclusive wisdom, smart locks adapt to the lifestyles of different generations, allowing everyone to find a balance between convenience and security. Multiple door opening methods, you can use fingerprint, IC card, password, mechanical key, mobile APP to open the door, which can bring you more convenience in opening and locking the door, bringing ease and pleasure to tedious life. You can also use the mechanical key and Bluetooth APP to unlock the door. Applicable for both left and right-handed doors, an ideal alternative for any standard single cylinder American door lock, such as apartment, residence, office, etc. Stay powered with four AAA batteries and a backup USB C port to functionality even during outages. All it need is just a small screwdriver, about 15 minutes you can install a smart lock for your home or office. When you forget to replace the battery and cannot open the door, USB emergency power can help you., Manufacturer: HONKERW