1. **Versatile Unlocking Methods**: The Smart Lock features multiple unlocking methods including APP control, fingerprint recognition, password entry, card access, and traditional key usage, ensuring convenience and flexibility for every user. 2. ** Housing Material**: Crafted from high-quality aluminum alloy, this Smart Lock boasts an IP rating of IP55, making it resistant to dust and water, for both indoor and outdoor use. 3. **Emergency Power Supply Option**: In case the battery runs out, the Smart Lock includes a power interface for temporary unlocking, ensuring you can always access your home when needed (note: this does not provide charging functionality). 4. **Wide Compatibility with Door Types**: This innovative Smart door handle is compatible with various door types, including steel doors, wooden doors, brass doors, stainless steel doors, and more, making it suitable for diverse applications. 5. **No Harmful Chemicals**: The Smart Lock is designed with safety in mind, containing no high-concern chemicals, ensuring peace of mind while enhancing your home security with cutting-edge biometric technology.