1. Fingerprint lock with blue LED      
2. Pixel resolution: 500DPI    
3. Fingerprint capacity: 150      
4. Model of Unlock: Fingerprint, password, fingerprint+password, or key    
5. Power Supply: 4AA alkaline batteries or 4AA electricized batteries (1.2V 1800mA. H)    
6. Super administrator and manager as well as user own different level privilege.      
7. Allow to delete fingerprint and password which assigns.          
8. Password can be revised freely by user.    
9. Allow to demo character and graph that display on screen when power up      
9. Set up the unlocking privilege and binding match way to unlocks