Fingerprint Smart Door Lock with Handle 4 in 1 Keyless Entry Tuya APP Key Passcodes Smart Electronic Door Handle Door Knob for Front Door Bedroom Apartment Hotel Features: 4 in 1 Unlock Method: Smart door lock with 4 in 1 unlock method, you can easily choose between fingerprint, passcode, key, or Tuya Smart APP control to access your home or room. The fingerprint technology ensures that only authorized individuals can enter your space for added convenience and security, and with living fingerprint recognition, 0.5 second speed recognition. Tuya APP Control: Tuya Smart (compatible with iOS version) of fingerprint door lock can be downloaded from the app store, and the compatible with Android version can be download from the application store of compatible with play, Aptoide and so on. You can set 300 fingerprints on the Tuya APP, which can be shared with family and friends, and you can also view the unlocking and locking records in real time on the APP. USB Rechargeable: Thumb print door lock powered by 4*AAA batteries (not included). When the voltage is lower than 4.8V, the alarm is activated each time with the unlock, and the lock could be unlock 100 times after first alarm. There has USB emergency power socket, which can be used to open the door by charging the door with a power bank device through the USB interface when there is no power at all. Aluminium Alloy Material: Crafted from and high density aluminium alloy material and with anodization treatment, this door lock is built to last, withstand the elements and resist tampering. DIY Installation: No wiring required, the installation process is straightforward and simple, making passcode door lock easy for anyone to install the lock themselves. It supports front and back dummy passcodes to prevent from peeking with valid password is 6-8 digits in scramble code function. And with passage mode for when you need to open/close the doors frequently. Specification: Material: Aluminum alloy Surface treatment: Anodization Product size: Rear handle: 158 x 68.5 x 56mm / 6.22 x 2.69 x 2.2in Front handle: 62 x 62 x 33mm / 2.44 x 2.44 x 1.29in Fingerprint reader: Living fingerprint recognition, 0.5 second speed recognition Unlock modes: Fingerprint*30, passcode*100, mechanical keys, Tuya Smart APP (BT) Fingerprint resolution: 500 DPI False rejection rate: (FRR)<0.1% False accept rate: (FRA)<0.001% Backup power: USB interface Power supply: 4*AAA batteries (not included) Battery life: 8 months Scramble code: 16 digits total Working temperature: -25 - 60°C Working relative humidity: 20%RG-90%RH Working voltage: 4.8-6.5V Fingerprint type: Semiconductor embedded fingerprint Door thickness: 35-65mm / 1.37-2.55in Lock body: Single-Latch Product color: Black, Black Silver (Optional) Packing List: 1 x Exterior Handle 1 x Interior Handle 1 x Exterior Base 1 x Interior Base 6 x  Screws 1 x  Mortise 2 x  Keys 1set x  Tools 1 x  Manual