Unlocking Methods Face recognition, under-screen fingerprint, palm vein, mobile phone remote unlocking, password unlocking, temporary password, card swiping unlocking, combined unlocking, virtual password, key unlocking. Function Introduction Dual internal and external cameras, 5-inch large screen, CNC fine carving, real-time monitoring, video call, loitering capture, anti-pry alarm, loitering alarm, door opening record, Grade C lock cylinder, low battery alarm, trial error alarm.