Feature:1. THREE MODES OF UNLOCKING: The fingerprint lock supports three modes of unlocking: fingerprint, password and mechanical key, which you can set according to your needs.2. ACCURATE RECOGNITION: Fingerprint lock adopts advanced biometric fingerprint technology with 508DPI resolution, fingerprint recognition rate is up to 98%. 50 sets of fingerprints can be added to eliminate the trouble of forgetting keys when going out.3. HIGHLY EFFICIENT: Smart fingerprint lock opens the door in just 1 second, and you can even set a freepass mode and keep it unlocked at all times, making it easy for kids and the elderly to use.4. LOW BATTERY ALERT: The smart lock requires 4 AAA batteries (not included), which can last up to 8 to 10 months depending on the frequency of use. Low battery reminder function (red lamp blinks three times when unlocked).5. EMERGENCY CHARGING: Equipped with USB port for emergency charging. (Note: This interface is only for emergency charging, the battery can not be charged, you need to replace the battery in time.)Specification:Item Type: Fingerprint LockMaterial: Aluminum alloy + ABSEmergency Power Port Type: type C USBEmergency Power Supply: DC 5VFingerprint Capacity: 50 piecesPassword Capacity: 100 setsPassword Length: 6 to 10 bitsFalse Password Length: 16 bitsAPP Name: For Smart LifeLow Power Alarm Voltage: 4.8V0.2VOperating Voltage: 6V/ 4x1.5VAAA dry battery (not included)Standby Current: <50uAWorking Current: 250maNumber of Administrators: 3 (01-03)Operating Temperature: -25 to 70Note: Initial password: 123456 Initial state of the administrator is 123456Add user operation: the first 3 entered users are administrators, press 10# for user entry operation. (need to verify the administrator, the initial state of the administrator is 123456, fingerprints need to be entered 6 times in a row, the password needs to be entered 2 times in a row, the length of the password is 6 to 10 digits, after the entry is successful, the system automatically hibernates)Press 21# for mute setting operation, after verifying the administrator successfully, the mute will be turned on or off automatically.Press 888# to reset the factory settings, after verifying the administrator successfully, all user information, including the administrator will be deleted. If you have not entered the administrator, after entering 888#, the system will directly enter the initialization without checking the administrator..Package List:1 x Outer Handle1 x Inner Handle1 x Lock Core1 x Square Bar2 x Keys1 x Screwdriver4 x Screws1 x Spring1 x Latch1 x Latch Box4 x Long Screws2 x Screw Connection Tubes