1, Material: stainless steel, prevent violence damage;2, The use of international advanced biotechnology to ensure reliable quality;3, Powered by 4 AA batteries;4, Three ways unlock: fingerprint, swipe M1 card, code and mechnical keys;5, 100pcs fingerprint capacity;6, 100pcs user cards;7, 6 digits password8, Unlock: Fingerprint, fingerprint+card, fingerprint+password9, Support low power alarm;10, Low noise unlock;11, Support anti-static;12, 3 years warranty;13, CE, FCC, RoHs certificates;