With this Smart Glass Door Lock, you are free to use fingerprint, password, M1 card, or remote control to unlock. It 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 wake up, low battery indicator, etc. Real keyless, this excellent home improvement product ensures the maximum flexibility and convenience of your life.