1. Easy for register/change a password
2. Double locking function
3. Blue LED keypad lighting in the night
4. Burglar alarm by forced entry
5. Low battery alarm function
6. Auto locking function
7. Anti-voltage shocking system
8. Mute function
9. Strong and smart design
10. Zinc alloy material
11. Power: D.C6(V) AA 1.5V x4pcs
12. Password: 3-12 digital
13. Electro-keys: 1-20 ones
