Unlock way: RFID card+passcode+fingerprint+Tuya App+key

Network: wifi, bluetooth

Color: Black

Handle Size: 167x60mm

Lockbody: 8545/8550/7255mm

Door thickness: 35-53mm

Power supply: 4 AA/1.5V batteries (without batteries)

Compatible with: Google Assistant, Amazon Alexa

Features: Emergency USB charge, low battery alarm, tamper alarm, wrong-try lockout