Biometric Fingerprint Door Lock & Handle with Keypad

3 Unlock Methods, Convenience, and Security: There are 3 unlocking methods: 1) fingerprint, 2) password, and 3) physical key. With a fingerprint recognition rate of up to 98%, it can open the door in just 1 second. You can add up to 50 fingerprint groups, eliminating the hassle offorgetting your keys. Voice Navigation Function & User-Friendly Operation: Features voicenavigation with bilingual support (Chinese/English/Spanish), making it suitablefor different users. The voice prompts guide users through setup and operation, reducing the risk of errors and making it especially friendly for the elderly and children. Emergency Charging Port, Long-Lasting Power: Powered by 4 AAA batteries (not included), fingerprint door knob features a low battery reminder and a Type-C interface for emergency charging, ensuring your lock is always ready. DIY Installation, Strong Compatibility: Designed for US standard doors, it fits backsets of 2-3/8″ (60mm) and 2-1/8″ (70mm) and door thicknesses from 1-3/8″ to2-1/8″ (35mm-55mm). No wiring or drilling required, and it fits both left-handed and right-handed doors.