1)Convenient One-Touch System2)Security First Design3)Safety First Design 4)Easy-to-Operate Key Pad5)Remote Branches ( Series R)6)Keys urgency Optional ( Series A) 7)Multi-Mortise Optional 8)Remarkable Durability9)Memory Capacity (up to 99 fingerprints)10)Safety Dead Bolt11)Power Supply(AA alkaline batteries)12)Low Power Alarm13)Stand-by Power Supply14)Anti-Tamper and Malicious Operation15)Modern Appearance and Advanced Biomechanical Design producing area:China