?ALL-IN-ONE SMART LOCK: A variety of ways to open the door, Extreme speed semiconductor
fingerprint recognition,
RFID card  or Tag,
virtual password Touch keyboard,
Mobile app ( BT ) , 
Mechanical keys
. A variety of smart unlocking methods (5 ways to unlock) , fingerprints are quickly unlocked, not only to ensure safety, but also to open the door lock quickly and easily.
?Door Bell Function:  It has a doorbell function, which is quick and easy to install and can be installed without punching.
?EASY INSTALLTION: This punching-free glass door fingerprint lock with attendance function With LCD display, no need any drill , special machine, only screw driver sufficient to install.
?PRACTICAL FEATURES: With capacitive touch keys and LED backlight design, beautiful and durable, comfortable operation. It also features low power protection and low voltage warning. Easy to operate, high in practicality and low in price, it is definitely a good assistant in your life.
?LONG BATTERY LIFE: Low energy consumption, powered by 4pcs 1.5V alkaline dry batteries(Not Included), can work continuously for one year. USB power supply can unlock the door when the battery is dead.