【Bluetooth Smart Control】Unlock and manage your door using Bluetooth connection directly from your phone. Ideal for homeowners and rental properties who need convenient local access without WiFi. 【Fast Fingerprint Biometric Unlock】Advanced biometric sensor recognizes your fingerprint in 0.3 seconds for secure and convenient access. Great for families, rentals, and offices. 【Strong Deadbolt Knob Security】Heavy-duty deadbolt knob design provides reliable physical protection for front doors and apartments. Built for long-term home security and daily use. 【Smart App & Voice Assistant Control】Create codes, view access logs, and manage users with the app. Works with Amazon Alexa & Google Assistant for hands-free voice control. 【Multiple Unlock Methods for Any Situation】Unlock with fingerprint, passcode, app, FOB, or mechanical key. Auto-lock and low-battery alerts ensure safety and easy operation every day., Weight: 1.0 pounds, Manufacturer: Sifely