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 illuminated,and remind you "please try again". How to change password: 1.Enter the current password (default 0000) to open the door of the safe.Long press "*" button, green light and red flashing. 2.Input 4 new passwords in 15 seconds, according to the "" confirm new password storage. Two lights stop flashing.3.If the new password is not entered in 15 seconds, the program will stop and the program must be restarted.Release the "*" button and close the door.Note:If you forget your password,you can remove the battery, and Install the battery after 5 minutes, the password returns to the originalcode: 0000,then you can reset your password again.About Batteries:1.Please use the new battery,3x1.5V 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.Specifications:1.Material: Environmental ABS plastic2.Color: pink3.Power Source: 3x1.5V AA Battery(Not included)4.Product Size: 8.5 X 5.1x7.1 Inches5.Product weight: 560 gPackage includes: 1 x Electronic Piggy Bank 1 x English Use Manual Our products are well tested before delivery,please feel confortable to buy, If you have any questions,Please contact the seller for assistance,we'll help you at once.