4 AAA batteries required.
Smart Lock,Hornbill Fingerprint Keyless Entry Locks with Touchscreen Keypad,Bluetooth Front Door Lock,Electronic Digital…
Make sure this fitsby entering your model number. 5-in-1 Smart Deadbolt >>Passcode + APP control+ Fingerprint + IC card + Key. Support wi-fi remote control work with Alexa and smart watch (need a gateway, sold separately). Great smart home devices for hotel, apartment, smart utilities for every home Stable & Solid Quality >> enter your home within 0.3s just a fingerprint unlocks and security with automatic lock. No more fumbling around for keys. Intuitive OLED display, zinc alloy body, long battery life, smart lock front door can provide 5000 openings (approx. 6 months). Perfect apartment essentials for first apartment.