Digital Door Lock Keyless Keypad Door Coded Lock Door Lock Smart Digital Room Lock with BT Function Support for iOS and Android Mobile Phone

Features:
Unlock Mathod: easy to unlock the lock by inputting passords with keypad or smartly unlock with mobile phone.
Privacy Password Input Safe Design: enable to unlock the door even when you adding any numbers before/after the correct password. and the smart keyboard is designed with traceless keys, thus prevent the password known by others.
Low Power Consumption: the inner battery compartment and the backup battery pack are both powered by 4pcs 1.5V AAA batteries (NOT included), and with less than 20μA static current, they can last more than one year, and it will make a continuous beep sounds to remind you when in low voltage.
Backlight 12-key Keypad: low brightness backlit keyboard makes it easy and convenient to use at night.
Reliable Quality: fine casting, modern appearance, waterproof seals protecting electronic components.
Simple Easy Installation: adopts with standard single spring bolt and equipped with installation accessories and instructions, quick to install the digital door lock. Fit for Various Doors with thickness between 35mm-60mm.
Voice Prompt: with voice prompt function, the design is more humanized.
Reset Function: press and hold the reset button for five seconds and the master code with return to the manufacturer default code 0123.
Wide Application: great for home, office, hotel, apartment, restaurant, dormitory, etc.