Brand Name: Viladepot Origin: Mainland China Ways To Unlock: App Ways To Unlock: Bluetooth Ways To Unlock: Mechanical Keys Ways To Unlock: CARD Ways To Unlock: Password Ways To Unlock: FINGERPRINT High-concerned chemical: none Material: Aluminium alloy Model Number: D6 Power Source: DRY BATTERY Power Supply: DRY BATTERY Suitable Door Type: Steel Door Suitable Door Type: Wooden Door Suitable Door Type: Glass Door Suitable Door Type: Brass Door Suitable Door Type: Stainless Stell Door Suitable Door Type: Other Connectivity: Bluetooth Suitable for Mortise: 6068 Certification: FCC Doorknob Funcition: Biometric Doorknob Funcition: Key & Keypad Finish Type: Painted Handle Direction: Direction Reversible Protection Level: No Waterproof Smart home platform: Tuya Fit Door Thickness: 35mm-55mm Scope of application: Interior Door Batteries Required: 4PCS AAA Alkaline Batterys Emergency Power Supply: TYPE-C Interface Silent Mode: Yes