Brand Name: Viladepot Origin: Mainland China Ways To Unlock: Mechanical Keys Ways To Unlock: Password Ways To Unlock: FINGERPRINT Ways To Unlock: Bluetooth Ways To Unlock: App Ways To Unlock: Other High-concerned chemical: None Power Source: DRY BATTERY Smart home platform: Tuya Fit Door Thickness: 30-50mm Power Supply: DRY BATTERY Suitable Door Type: Wooden Door Suitable Door Type: Brass Door Suitable Door Type: Stainless Stell Door Suitable Door Type: Steel Door Suitable Door Type: Other Connectivity: Bluetooth Suitable for Mortise: 6068 Certification: FCC Model Number: D2 Doorknob Funcition: Biometric Doorknob Funcition: Key & Keypad Finish Type: Painted Handle Direction: Direction Reversible Protection Level: No Waterproof Scope of application: Inner doors APP: Tuya Batteries Required: Four #7 batteries Silent Mode: Yes