Advanced 3D face recognition for fast, touchless access Multiple unlock options including palm, fingerprint, password, app, and mechanical key Wi-Fi connectivity for remote control through the Tuya Smart app Durable aluminum alloy body built for long-term use Anti-peep code technology to protect password privacy Tamper alarm for added security against forced entry Built-in camera with night vision for clear monitoring, day or night Two-way audio for real-time communication at the door Compatible with various door types for flexible installation Grade C lock cylinder ensures a high level of security and protection