Features an advanced all-in-one motorized latch that auto-retracts when unlocked and auto-locks when the door closes—no need to push or pull the handle, delivering true hands-free entry. Connects via Bluetooth to the TT Lock App for local unlocking, password management, and access logs; supports Wi-Fi gateway add-on for remote unlock and real-time monitoring anywhere. Supports semiconductor fingerprint, NFC tags, IC cards, passcodes, and physical keys, providing flexible and secure access for homeowners, tenants, kids, and elderly users. Equipped with a high-precision fingerprint sensor, anti-peep virtual password input, and built-in tamper alarm to protect against unauthorized access and suspicious attacks. Crafted from durable zinc alloy with a minimalist exterior, powered by 4–6 AA batteries for months of stable operation, and includes USB emergency power for worry-free use.