This smart lock handle appears to be a Tuya-compatible Biometric Fingerprint Door Lock, specifically a model often marketed as the Smart Handle S1 or similar variants from brands like Volibel or Camakt. It is designed for keyless entry on interior doors such as bedrooms, offices, or apartments. Key Features Multiple Entry Modes: Offers 3-in-1 or 4-in-1 unlocking via high-speed biometric fingerprint (0.25s–0.5s recognition), the Tuya Smart/Smart Life app, and physical backup keys. App Connectivity: Uses Bluetooth (or Wi-Fi with an optional gateway) to manage users, check access logs, and generate temporary passwords for guests. Design & Build: Crafted from durable zinc alloy or aluminum alloy with a sleek black finish. The handle is typically reversible to fit both left and right-handed doors. Emergency Power: Features a built-in Micro-USB or Type-C port to provide emergency power from a power bank if the batteries fail. Technical Specifications Feature Details User Capacity Up to 50–100 fingerprints Power Source 4 x AAA or AA alkaline batteries (approx. 6–12 months life) Door Compati