Password Piggy Bank: This innovative piggy bank features advanced electronic password protection. Enter the correct 4-digit password to unlock it; the default is 0000, but you can change it to any combination you prefer. If the wrong password is entered, an alert will sound, ensuring your savings are secure. Once the correct password is entered, a green light will illuminate, allowing you to turn the knob clockwise to open the door. High-Capacity Money Saving Box: Designed to help children develop good saving habits, this piggy bank can hold up to 600 coins or 100 paper bills. It encourages kids to plan and save their pocket money effectively. Automatic Paper Money Scroll: Simply insert paper money into the slot on top of the bank, and it will automatically roll into the ATM-like machine. This feature makes it easy and fun for kids to deposit their cash (note: it may not work with old or soft paper). How to Use: 1. Enter the four-digit password (default 0000). A green light will indicate success. If the wrong password is entered, a red light will illuminate, and the bank will prompt you to "please try again". 2. Rotate the knob clockwise to open the door. The green light will shine for about 10 seconds, accompanied by a creaking sound. If the door remains open for more than 10 seconds, the green light will stop flashing, and a beeping sound will occur every 20 seconds until the door is closed. 3. Insert coins through the coin slot on top. When depositing banknotes, they will be automatically sucked into the bank. To withdraw money, simply enter the password again.