WELOCK U81 Smart Lock Cylinder with Fingerprint, PIN & Key PRODUCT MODEL:U81+WIFIBOX3 you can use the USB

you can use the USB backup to unlock

it is easy to replace the existing lock cylinder in your front door or apartment door without drilling

Fingerprint

with an IP65 rating

the battery life is up to 10 months

WELOCK U81 Smart Lock Cylinder with Fingerprint, PIN & Key PRODUCT MODEL:U81+WIFIBOX3 you can use the USB1. 6 Ways to Unlock Unlock with a fingerprint, PIN code, RFID card, Bluetooth, WELOCK app, mechanical key, or Alexa (via WiFiBox3) for flexible keyless access at home, rentals, or the office. 2. Designed for Narrow Euro Profile Doors Fits compatible Euro profile cylinder doors with door backsets from 25 mm, making installation possible where many smart cylinders won't fit. 3. Remote Control & Smart Home Pair with WiFiBox3 for remote unlocking, access