🔐 Smart Door Lock Security • Convenience • Smart Control ✨ Key Features: 📱 Full control via Smart Life app 📸 Smart camera when doorbell is pressed 📞 Video and voice call with visitor 👆 Fingerprint unlock — up to 100 fingerprints 🔢 Secret code unlock 💳 NFC card unlock 📲 Unlock from the app 🔑 Emergency backup key 👶 Child safety lock 🔋 Rechargeable lithium battery ↔ Suitable for right or left doors ⭐ Specifications Color: Black Power: Built-in lithium battery Compatibility: Suitable for most wooden doors Security: High security level Warranty: 2 years from date of purchase