Sophies Fingerprint Door Lock, 5-in-1 Keyless Entry Digital Knob Bluetooth APP/IC Cards/Codes/Keys/Fingerprints Biometric Easy to Install for Exterior, Interior, Bedroom Doors Black (Black)

Fingerprint Door knob It has a low battery alarm function and comes with a USB port for emergency charging.Requires 4 AAA batteries (not included)

• 【Versatile 5-in-1 Smart Door Lock】Experience cutting-edge security with five convenient unlocking options—fingerprint, password, IC card, app control, and traditional mechanical keys. Add up to 300 fingerprints and passwords, ensuring effortless access to your home for you and trusted guests.
• 【Instant Fingerprint Access】Utilize advanced biometric technology for lightning-fast access; enjoy a 98% recognition rate with unlocking in just 0.3 seconds. Forgetting your keys is no longer a worry—experience seamless entry with a simple touch of your finger.
• 【Bluetooth Connectivity】Stay in control with the Tuya app, allowing you to manage access from anywhere! Create temporary access codes, review unlock history, receive real-time notifications, and activate the auto-lock feature for complete peace of mind regarding your property.
• 【Hassle-Free Installation】No handyman? No problem! Install this smart deadbolt lock quickly and easily with only a Phillips screwdriver. Compatible with both left and right-handed doors (1-1/8 inches to 2-1/8 inches, or 30mm-55mm), this lock eliminates the need for extra tools or a locksmith.
• 【Reliable USB Emergency Charging】Designed to run on 4 AAA alkaline batteries (not included), this smart lock delivers dependable performance without messy wiring. Plus, in case of battery emergencies, use the built-in USB port for a quick boost with a power bank.