Product instructions: How to use: 1.Install your ordinary 3 AA batteries. Enter the four-digit passwords (default 0000) 2.Green lights on then rotate the knob clockwise to open the door. Note:If you enter the wrong passwords the red light will be illuminatedand remind you &quotplease try again&quot. How to change password: 1.Enter the current password (default 0000) to open the door of the safe. Long press &quot*&quot button don t loosen it then red light will flashing. 2.Input 4 new passwords in 15 seconds according to the &quot &quot confirm new password storage red light stop flashing Release the &quot*&quot buttonchange password success. 3.If the new password is not entered in 15 seconds the program will stop and the program must be restarted.Release the &quot*&quot button and close the door. Note:If you forget your passwordyou can remove the battery and Install the battery after 5 minutes the password returns to the original code: 0000then you can reset your password again. About Batteries: 1.Please use the new battery3x1.5V AA Battery(Product not included) 2.Do not mix the use of new and old batteries. 3.If you don t use it for a few weeks remove the battery. 4.Make sure the battery power is sufficient when using otherwiseit will affect the automatic roll money and unlock function of the Piggy bank. Specifications: 1.Material: Environmental ABS plastic 2.Color: Red black 3.Power Source: 3x1.5V AA Battery(Not included) 4.Product Size: L5.0 x W4.8 x H7.3 Inches Improve The Child s Property safety Consciousness: &quotmy own safe&quot guarding their own things. It can be used to store toys jewelry baseball cards etc. insert coins into the top of the money bank and you insert bills into the sidejust use the safe as a piggy bank. Password Safe Cash BoxEnter the 4 digit password(default: 0000Changable passwords as you like) the green light will be onthe ATM can be opened. . If you enter the wrong password the red light will turn on and the sound of &quotPLEASE TRY AGAIN&quot will prompt youyou can not open itif the password it s wrong Automatic Roll Money ATM Bank: Put the paper money on the scroll it can be rolled into the machine automatically.(But it doesn t work if the paper is too old or too soft) Environmental protection materials: Environmental ABS plasticNo odor anti-aging durable and durableadults and kids all can use it large inside capacity can help adults hold some private small items. High-capacity: Can store 600 pieces of coins or 100 pieces of paper money. interesting &amp funny a must item for child or gifts greatly help you to develop a good habit of saving money.