Product Features : ✅Unlock way:Phone + Fingerprint + Password + Card+ key.
✅ One-Touch-Access Biometric Fingerprint sensor on the reader.
✅Strong and secure Aluminum alloy lock panel, Anti-corrosion and study.
✅Back-up USB external power supply interface and mechanical key unlock.
✅Temporary password function:share one-time password to your friends or family members.
✅Convenient APP management system, you can manage your smart lock anytime and anywhere.