Water & Wood New Security RFID Proximity Entry Door Gate Lock Access Control System for 500 User +10 Key Fobs Professional design, great for home and office high security, come with user manual. Sensitively and response quickly. Support 500 standard users. RF type (admin user selectable): Card (Key Tag) & Password/ Card (Key Tag) Only/ Password Only. Maximum card-sensing distance: 10cm-20cm. 10 key fobs color will be sent in random