Unlocking Methods Face recognition, fingerprint unlocking, palm vein unlocking, mobile phone remote unlocking, password unlocking, temporary password, card swiping unlocking, combination unlocking, virtual password, key unlocking. Function Introduction High-definition external camera, 4.5-inch large screen, CNC fine carving, real-time monitoring, voice call, loitering capture, anti-pry alarm, loitering alarm, door opening records, Class C lock cylinder, low battery alarm, trial error alarm.