The Vevor smart door knob offers secure keyless access with fingerprint, Bluetooth app, and key unlocking options. It is designed for homes, apartments, offices, and hotels, and stores up to 50 fingerprints for convenient multi-user access. The zinc alloy construction and IP63 rating help provide durability for everyday use. Auto-lock functionality and app-based management add extra convenience and security. Its no-drill installation fits most standard left-hand and right-hand doors in the United States.