The DF11 Smart Lock is a  highly advanced smart lock with  some of the key features:
Material and Finish: Constructed from aluminium alloy with a dark grey finish.
Door Compatibility: Fits door thicknesses from 35 to 110 millimeters.
User Capacity: Supports up to 300 users.
Unlocking Methods: Includes 3D facial recognition, fingerprint scanning, password entry, IC card access, mechanical key, and control via the TUYA app and intercom.
Operating Systems: Compatible with iOS 7.0 and above, and Android 4.4 and later.
Battery Life: Up to 12,000 uses, approximately 18 months or more, powered by a 4200 mAh lithium battery.
Operating Conditions: Functions within a voltage range of 7.2V to 8.4V, temperatures from -20°C to 65°C, and humidity levels from 10% to 90%