Saving money easy: Kids can save money and paper money. For paper money, just put the money at the main entrance and it will be automatically withdrawn into this electronic piggy bank so that it can work like a mini ATM machine. For coins, they fall off the top easily. How to use the password: After entering the 4-digit password (default: 000, you can change the password according to your needs), the green light is on, and you can open the ATM bank. If the password is entered incorrectly, the red light will be on and a special sound of "PLEASE TRY AGAIN" will be emitted. Default password reset: Enter the current password (default 0000) to open the safe door. Long press the "*" key, the green light and red light flashes. Enter a new 4-digit password within 15 seconds, press " " to confirm to save the new password. Both lights stopped flashing. Note: If no new password is entered within 15 seconds, the program will stop, please restart the program. Package: 1 blue piggy bank Size: 18.5*12.5*12cm Note: Due to the different pictures displayed, the actual color shall prevail. Dimensions are all measured by hand, there may be errors (1-2 cm).