features of numeric touchscreen, auto and manual locking mode, holds up to 300 fingerprints/passwords/M1 card, double authentication unlock (fingerprint with password combination or dual fingerprint combination), easy installation (no wiring required), touch wakeup, low battery indicator, etc. Real keyless, this excellent home improvement product ensures the maximum flexibility and convenience of your life. Features: Multiple Ways to Unlock: fingerprint, password, M1 card, remote control. Password Unlock: can save up to 300 password (6-10 number combination). Fingerprint Management: can save up to 300 fingerprints, and support up to 100,000 times of fingerprint changes. Voice Prompts: voice guide when operation. Volume is adjustable and with mute function. Permissions Settings: allow the designated people to unlock the door at the designated time. Easy to Install and Program: equipped with the necessary accessories and English Manual, quick to install. Digital Touch Keypad Panel with Backlight: makes it easy and convenient to use at night. Dual Power Supply: support two ways to supply power. (emergency power supply with the USB interface) Privacy Password Input: unlock the door even when you enter in 20 bits of passwords, as long as you continuous input the correct password. Low Battery Alarm: voice prompt you when the battery is low. Unlock Record Query: provide you the most recent 10,000 unlock operation record. Wide Applications: great for home, office, hotel, apartment, restaurant, dormitory, etc.