Features 1??Smart door lock, widely used, suitable for homestay, hotel and apartment, etc. 2??Free handle, allows you to adjust door opening direction according to your need. 3??4 kinds of door opening methods: biological fingerprint unlocking, virtual password unlocking, IC card unlocking, emergency key unlocking. 4??With abnormal unlock alarm, using 10 times wrong password and key, the system will automatically lock and alarm, safer for using. 5??4pcs AAA battery, energy saving, low power consumption, it can last for about 1 year in normal use. 6??With emergency charging port, can be charged by power bank, no need worry about no power. Specification Condition: Item Type: Door Lock Color: As picture shown Product Model: 3011 Main Material: Zinc Alloy Suitable Door Thickness: Approx. 40-60cm/15.7-23.6in Card Type: IC Card, M1 Card (13.56mhz) Static Power Consumption: ??20uA Low Voltage Prompt: 4.8V Working Power Consumption: About 150ma Open User: 298(Manage User: 1, Fingerprint: 99, Passwords: 99, Magnetic Card: 99) Main Functions: Fingerprint/password/smart card/mechanical key Performance and Technical Index: Adopt living biological fingerprint authentication technology Power Supply: 4 x AAA Alkaline Batteries (Not Included) Package List 1 x Smart Lock 1 x Lock Cylinder 1 x Bolt 2 x Mechanical Key 2 x IC Card 1 x Accessory Bag 1 x Instruction