Multi-Access: Unlock with fingerprint (up to 100 unique accesses), password, RFID card (up to 100 unique accesses), or mechanical key. Smart Features: Auto-relock, low battery alarm, anti-peep password, and 2 rechargeable lithium polymer batteries. Compatibility: Optional VIP access for home automation and integrated Wi-Fi for remote access. Versatile: 3mm-90mm door thickness compatibility and suitable for swing doors. Security: Mobile access log, anti-panic exit function, and loud alarm in case of forced entry.