Features:Digital Keypad Lock: it provides good safety protection for your personal items. Powered by 4 * 1.5V AAA batteries(not included).Wide Application: it can be used for household or business. Great lock for cabinet, drawer, locker, storage box, etc.Two Modes: it has Independent mode and Open mode switchable, meeting the demands of personal and public usage.Password Protection Function: after entering the wrong password for 3 times in a row, the main board program will be locked for 1 minute. At this time, you cannot enter the password to open the lock, which can effectively prevent malicious password attempts.Virtual Password Function: when entering the password, you can enter it at will, as long as the number string you input contains the correct password, which effectively prevents stealing the password.Emergency Unlocking: designed with a charging port on the bottom of keypad, if the batteries run out, you can use external power supply to unlock.How to Change Administrator Password? (it consists of 6~10 digits number, Original Password: 00000000)1. Long press green key for 5s, indicator flickers.2. Input old administrator password and press green key to confirm.3. If the password is right, the buzzer will ring and indicator will flicker.4. Input new administrator password and press green key to confirm, the buzzer will ring to mean modify successfully.How to Change User Password? (it consists of 4~10 digits number, Original Password: 1111)1. Short press green key twice, indicator flickers.2. Input old user password and press green key to confirm.3. If the password is right, the buzzer will ring and indicator will flicker.4. Input new user password and press green key to confirm, the buzzer will ring to mean modify successfully.Note: on Open Mode, you can not change user password.How to Open Lock?Input password, then press green key, and just pull the door after unlock.(if the password is wrong, the yellow indicator will flicker and buzzer will ring for 4 times)How to Lock?A. Independent Mode: after unlocking for 3s, it will automatically lock, and you just need to close the door.B. Open Mode: in the unlock state, close the door and input custom password to lock. The custom password you input is used to unlock next time.How to Choose Open Mode?1. Press red keygreen key4 keygreen key, indicators flickers.2. Input administrator password and press green key to confirm, the buzzer rings means modify successfully.How to Choose Independent Mode?1. Press red keygreen key5 keygreen key, indicators flickers.2. Input administrator password and press green key to confirm, the buzzer rings means modify successfully.How to Switch ON/OFF Virtual Password? (Default: OFF)1. Switch ON: press red keygreen key6 keygreen key, indicators flickers. Input administrator password and press green key to confirm, the buzzer rings means modify successfully.2. Switch OFF: press red keygreen key7 keygreen key, indicators flickers. Input administrator password and press green key to confirm, the buzzer rings means modify successfully.How to Switch ON/OFF Status Notifications? (Default: OFF)(Under Open mode, when it is being used, the red indicator will flicker.)1. Switch ON Notification:press red keygreen key8 keygreen key, indicators flickers. Input administrator password and press green key to confirm, the buzzer rings means modify successfully.2. Switch OFF Notification:press red keygreen key9 keygreen key, indicators flickers. Input administrator password and press green key to confirm, the buzzer rings means modify successfully.Factory Reset:Long press the set key(inside of the lock), red indicator flickers, and the buzzer rings after 3s, red yellow green indicators flicker for 3 times.Low Voltage Alarm:If you unlock it when the battery is low, red indicator will flicker for 4 times and buzzer will ring, please replace the batteries.Other Emergency Situation:If you forget the user password, you can use administrator password to unlock.