Renvdsa Cartoon Electronic Atm Password Piggy Bank Cash Coin Can Auto Scroll Paper Money Saving Box Gift For Kids (Navy Blue)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 forget your password,you can remove the battery, and Install the battery after 5 minutes, the password returns to the original code: 0000,then you can reset your password again. How to change password: 1. Enter the current password (default 0000) to